[10.11.3] Reoccurring freezes/crashes while transcoding #7828

Open
opened 2025-12-22 06:26:03 +01:00 by backuprepo · 9 comments
Owner

Originally created by @v3DJG6GL on GitHub (Nov 24, 2025).

This issue respects the following points:

  • This is a bug, not a question or a configuration issue; Please visit our forum or chat rooms first to troubleshoot with volunteers, before creating a report.
  • This issue is not already reported on GitHub (I've searched it).
  • I'm using an up to date version of Jellyfin Server stable, unstable or master; We generally do not support previous older versions. If possible, please update to the latest version before opening an issue.
  • I agree to follow Jellyfin's Code of Conduct.
  • This report addresses only a single issue; If you encounter multiple issues, kindly create separate reports for each one.

Description of the bug

I really hoped that my reoccurring freezes/crashes of Jellyfin would be resolved by the latest Jellyfin 10.11.X with the new LockingBehavior options. However, I still have issues freezes/crashes while users are streaming content from my Jellyfin Server - mainly if the content has to be transcoded. I'll try to describe it as detailed as possible:

  1. While users are streaming content that has to be transcoded, Jellyfin seems to get slower and slower. One indication that there might be something wrong is the Admin Dashboard: Normally active Devices are loading almost instantly. But in those situations, this list takes several seconds to load and is increasing dramatically over time...
  2. Later on, shortly after, I am receiving messages from users currently streaming that their streams are stuttering.
  3. Next my Jellyfin instance is responding with an HTTP error 404 message. After about a minute, Jellyfin is reachable again.
    UPDATE: This is due to Liveness probes failing, causing a restart of the Jellyfin container.
  4. After some minutes, the issue is reoccurring again: Jellyfin takes much longer to respond/loading pages, Streams are stuttering, Jellyfin crashes with an HTTP error 404.
  5. I do have to manually restart my Jellyfin container in order to get into a usable state again. Using Restart button within Jellyfin admin panel does not always seem to resolve the issue.

Notes:

  • The only errors I can see within Jellyfin log files is this one. However, I don't think that's the reason for these crashes:
[21:19:26] [ERR] [9] Jellyfin.Api.WebSocketListeners.SessionInfoWebSocketListener: Error sending web socket message Sessions
System.Net.WebSockets.WebSocketException (0x80004005): The WebSocket is in an invalid state ('Closed') for this operation. Valid states are: 'Open, CloseReceived'
   at System.Net.WebSockets.ManagedWebSocket.ThrowIfInvalidState(WebSocketState[] validStates)
   at System.Net.WebSockets.ManagedWebSocket.SendAsync(ReadOnlyMemory`1 buffer, WebSocketMessageType messageType, WebSocketMessageFlags messageFlags, CancellationToken cancellationToken)
--- End of stack trace from previous location ---
   at Emby.Server.Implementations.HttpServer.WebSocketConnection.SendAsync[T](OutboundWebSocketMessage`1 message, CancellationToken cancellationToken)
   at MediaBrowser.Controller.Net.BasePeriodicWebSocketListener`2.SendDataForConnectionAsync(ValueTuple`3 tuple)
  • This issue happens no matter what client they use. It already happened with Jellyfin Web, Jellyfin Media Player, Findroid, Jellyfin for Android
  • I am not sure whether it only affects Transcoding Streams or also Direct Play. I might have to observe that a bit more.
  • I have set LockingBehavior to Optimistic
  <LockingBehavior>Optimistic</LockingBehavior>

Reproduction steps

This issue happens on random occasions, currently about once per week. Sometimes I had no issues for 2 months, sometimes it happens two or three times within a week.
UPDATE: I am not sure anymore whether this is the same issue I was facing over the last months

I cannot really tell how to replicate this issue. But it only happens if users are actively streaming content from specific series (and probably movies) that has to be transcoded.
UPDATE: Additionally, it seems to be related with HTML Video Player as explained in https://github.com/jellyfin/jellyfin/issues/15628#issuecomment-3617447010

What is the current bug behavior?

Jellyfin gets super slow, streams are stuttering and then finally Jellyfin responds with a HTTP 404 error is so slow that I have to restart the container.

What is the expected correct behavior?

Jellyfin should not crash ;)

Jellyfin Server version

10.11.3
10.11.4

Specify commit id

No response

Specify unstable release number

No response

Specify version number

No response

Specify the build version

10.11.3
10.11.4

Environment

- OS: TrueNAS SCALE
- Linux Kernel: 6.1.74
- Virtualization: Docker
- Clients: Jellyfin-Web, ~~Findroid~~, ~~Jellyfin Media Player~~, Jellyfin for Android (**if HTML Video Player selected**)
- Browser: LibreWolf v144.0.2-1
- FFmpeg Version: v7.1.2
- Playback Method: Transcoding (but probably also Direct Play)
- Hardware Acceleration: CUDA
- GPU Model: NVIDIA RTX 4000 SFF Ada
- RAM (allocated for Jellyfin): 64GB
- CPU Cores (allocated for Jellyfin): 40
- Plugins:

Cover Art Archive 9.0.0.0
Discogs 2.0.0.0
Fanart 12.0.0.0
LrcLib Lyrics 3.0.0.0
Playback Reporting 17.0.0.0
Reports 18.0.0.0
Session Cleaner 5.0.0.0
SSO-Auth 4.0.0.3
Streamyfin 0.64.0.0
Subtitle Extract 7.0.0.0
TheTVDB 20.0.0.0
TMDb Box Sets 12.0.0.0
TVmaze 13.0.0.0
Webhook 18.0.0.0
TMDb 10.11.3.0
Studio Images 10.11.3.0
OMDb 10.11.3.0
MusicBrainz 10.11.3.0
AudioDB 10.11.3.0

- Reverse Proxy: Traefik
- Base URL: None
- Networking: Reverse Proxy
- Jellyfin Data Storage: NVMe SSD
- Media Storage: HDD
- External Integrations: N/A

Jellyfin logs

These logs are from shortly before and after such a crash
Jellyfin-2025-11-24_21-21.log

FFmpeg logs

These logs are from shortly before and after such a crash
FFmpeg.Transcode-2025-11-24_21-18-09_f70766f051a09678c0c90958f85965a2_dc5f2cfc.log
FFmpeg.Transcode-2025-11-24_21-18-14_f70766f051a09678c0c90958f85965a2_ef690bd4.log
FFmpeg.Transcode-2025-11-24_21-17-41_f70766f051a09678c0c90958f85965a2_1ee88018.log
FFmpeg.Transcode-2025-11-24_21-14-02_f70766f051a09678c0c90958f85965a2_32697826.log
FFmpeg.Transcode-2025-11-24_21-13-57_f70766f051a09678c0c90958f85965a2_5cdc1428.log

Client / Browser logs

No response

Relevant screenshots or videos

No response

Additional information

No response

Originally created by @v3DJG6GL on GitHub (Nov 24, 2025). ### This issue respects the following points: - [x] This is a **bug**, not a question or a configuration issue; Please visit our [forum or chat rooms](https://jellyfin.org/contact/) first to troubleshoot with volunteers, before creating a report. - [x] This issue is **not** already reported on [GitHub](https://github.com/jellyfin/jellyfin/issues?q=is%3Aopen+is%3Aissue) _(I've searched it)_. - [x] I'm using an up to date version of Jellyfin Server stable, unstable or master; We generally do not support previous older versions. If possible, please update to the latest version before opening an issue. - [x] I agree to follow Jellyfin's [Code of Conduct](https://jellyfin.org/docs/general/community-standards.html#code-of-conduct). - [x] This report addresses only a single issue; If you encounter multiple issues, kindly create separate reports for each one. ### Description of the bug I really hoped that my reoccurring freezes/crashes of Jellyfin would be resolved by the latest _Jellyfin 10.11.X_ with the new _LockingBehavior_ options. However, I still have issues freezes/crashes while users are streaming content from my Jellyfin Server - mainly if the content has to be transcoded. I'll try to describe it as detailed as possible: 1. While users are streaming content that has to be transcoded, Jellyfin seems to get slower and slower. One indication that there might be something wrong is the Admin Dashboard: Normally active _Devices_ are loading almost instantly. But in those situations, this list takes several seconds to load and is increasing dramatically over time... 2. Later on, shortly after, I am receiving messages from users currently streaming that their streams are stuttering. 3. ~~Next my Jellyfin instance is responding with an HTTP error 404 message. After about a minute, Jellyfin is reachable again.~~ _UPDATE:_ This is due to Liveness probes failing, causing a restart of the Jellyfin container. 5. After some minutes, the issue is reoccurring again: Jellyfin takes much longer to respond/loading pages, Streams are stuttering, Jellyfin crashes with an HTTP error 404. 6. I do have to manually restart my Jellyfin container in order to get into a usable state again. Using _Restart_ button within Jellyfin admin panel does not always seem to resolve the issue. ### Notes: - The only errors I can see within Jellyfin log files is this one. However, I don't think that's the reason for these crashes: ```shell [21:19:26] [ERR] [9] Jellyfin.Api.WebSocketListeners.SessionInfoWebSocketListener: Error sending web socket message Sessions System.Net.WebSockets.WebSocketException (0x80004005): The WebSocket is in an invalid state ('Closed') for this operation. Valid states are: 'Open, CloseReceived' at System.Net.WebSockets.ManagedWebSocket.ThrowIfInvalidState(WebSocketState[] validStates) at System.Net.WebSockets.ManagedWebSocket.SendAsync(ReadOnlyMemory`1 buffer, WebSocketMessageType messageType, WebSocketMessageFlags messageFlags, CancellationToken cancellationToken) --- End of stack trace from previous location --- at Emby.Server.Implementations.HttpServer.WebSocketConnection.SendAsync[T](OutboundWebSocketMessage`1 message, CancellationToken cancellationToken) at MediaBrowser.Controller.Net.BasePeriodicWebSocketListener`2.SendDataForConnectionAsync(ValueTuple`3 tuple) ``` - This issue happens no matter what client they use. It already happened with _Jellyfin Web_, _Jellyfin Media Player_, _Findroid_, _Jellyfin for Android_ - I am not sure whether it only affects _Transcoding Streams_ or also _Direct Play_. I might have to observe that a bit more. - I have set _LockingBehavior_ to _Optimistic_ ``` <LockingBehavior>Optimistic</LockingBehavior> ``` ### Reproduction steps This issue happens on random occasions, currently about once per week. Sometimes I had no issues for 2 months, sometimes it happens two or three times within a week. _UPDATE: I am not sure anymore whether this is the same issue I was facing over the last months_ I cannot really tell how to replicate this issue. But it only happens if users are actively streaming content from specific series (and probably movies) that has to be transcoded. _UPDATE: Additionally, it seems to be related with HTML Video Player as explained in https://github.com/jellyfin/jellyfin/issues/15628#issuecomment-3617447010_ ### What is the current _bug_ behavior? Jellyfin gets super slow, streams are stuttering and then finally Jellyfin ~~responds with a HTTP 404 error~~ is so slow that I have to restart the container. ### What is the expected _correct_ behavior? Jellyfin should not crash ;) ### Jellyfin Server version 10.11.3 10.11.4 ### Specify commit id _No response_ ### Specify unstable release number _No response_ ### Specify version number _No response_ ### Specify the build version 10.11.3 10.11.4 ### Environment ```markdown - OS: TrueNAS SCALE - Linux Kernel: 6.1.74 - Virtualization: Docker - Clients: Jellyfin-Web, ~~Findroid~~, ~~Jellyfin Media Player~~, Jellyfin for Android (**if HTML Video Player selected**) - Browser: LibreWolf v144.0.2-1 - FFmpeg Version: v7.1.2 - Playback Method: Transcoding (but probably also Direct Play) - Hardware Acceleration: CUDA - GPU Model: NVIDIA RTX 4000 SFF Ada - RAM (allocated for Jellyfin): 64GB - CPU Cores (allocated for Jellyfin): 40 - Plugins: Cover Art Archive 9.0.0.0 Discogs 2.0.0.0 Fanart 12.0.0.0 LrcLib Lyrics 3.0.0.0 Playback Reporting 17.0.0.0 Reports 18.0.0.0 Session Cleaner 5.0.0.0 SSO-Auth 4.0.0.3 Streamyfin 0.64.0.0 Subtitle Extract 7.0.0.0 TheTVDB 20.0.0.0 TMDb Box Sets 12.0.0.0 TVmaze 13.0.0.0 Webhook 18.0.0.0 TMDb 10.11.3.0 Studio Images 10.11.3.0 OMDb 10.11.3.0 MusicBrainz 10.11.3.0 AudioDB 10.11.3.0 - Reverse Proxy: Traefik - Base URL: None - Networking: Reverse Proxy - Jellyfin Data Storage: NVMe SSD - Media Storage: HDD - External Integrations: N/A ``` ### Jellyfin logs _These logs are from shortly before and after such a crash_ [Jellyfin-2025-11-24_21-21.log](https://github.com/user-attachments/files/23732258/Jellyfin-2025-11-24_21-21.log) ### FFmpeg logs _These logs are from shortly before and after such a crash_ [FFmpeg.Transcode-2025-11-24_21-18-09_f70766f051a09678c0c90958f85965a2_dc5f2cfc.log](https://github.com/user-attachments/files/23732207/FFmpeg.Transcode-2025-11-24_21-18-09_f70766f051a09678c0c90958f85965a2_dc5f2cfc.log) [FFmpeg.Transcode-2025-11-24_21-18-14_f70766f051a09678c0c90958f85965a2_ef690bd4.log](https://github.com/user-attachments/files/23732208/FFmpeg.Transcode-2025-11-24_21-18-14_f70766f051a09678c0c90958f85965a2_ef690bd4.log) [FFmpeg.Transcode-2025-11-24_21-17-41_f70766f051a09678c0c90958f85965a2_1ee88018.log](https://github.com/user-attachments/files/23732205/FFmpeg.Transcode-2025-11-24_21-17-41_f70766f051a09678c0c90958f85965a2_1ee88018.log) [FFmpeg.Transcode-2025-11-24_21-14-02_f70766f051a09678c0c90958f85965a2_32697826.log](https://github.com/user-attachments/files/23732209/FFmpeg.Transcode-2025-11-24_21-14-02_f70766f051a09678c0c90958f85965a2_32697826.log) [FFmpeg.Transcode-2025-11-24_21-13-57_f70766f051a09678c0c90958f85965a2_5cdc1428.log](https://github.com/user-attachments/files/23732206/FFmpeg.Transcode-2025-11-24_21-13-57_f70766f051a09678c0c90958f85965a2_5cdc1428.log) ### Client / Browser logs _No response_ ### Relevant screenshots or videos _No response_ ### Additional information _No response_
backuprepo added the
bug
label 2025-12-22 06:26:03 +01:00
Author
Owner

@v3DJG6GL commented on GitHub (Nov 25, 2025):

OK, I was just able to reproduce this error with debug logging activated.
It happened with the same show it happened yesterday, although not the same episode. Yesterday the user reported stuttering while playing Episode 2. I was able to reproduce it with Episode 1:

/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01/Valeria.2020.S01E01.The.Impostor.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv

Timeline

~16:39: Streaming started
~16:42: HTTP error 404 occured
~Approx 16:43 Reachable again

~16:44: Streaming started
~16:51: HTTP error 404 occured
~16:51:45: Reachable again

Jellyfin logs:

log_20251125.tar.gz

FFmpeg logfiles:

Directory:

/mnt/hdd-pool/userdata/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01
ls -la
total 31193266
drwxrwxr-x  2 apps apps         10 Nov 15 21:45  .
drwxrwxr-x  6 apps apps          6 Nov 16 10:48  ..
-rw-rw-r--+ 3 apps apps 3627269470 Nov 15 21:44 'Valeria.2020.S01E01.The.Impostor.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 4566471373 Nov 15 21:44 'Valeria.2020.S01E02.Signs.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 4027918552 Nov 15 21:44 'Valeria.2020.S01E03.Alaska.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 3991571672 Nov 15 21:44 'Valeria.2020.S01E04.The.Pond.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 3638101940 Nov 15 21:44 'Valeria.2020.S01E05.Mr.Champi.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 4025381634 Nov 15 21:44 'Valeria.2020.S01E06.My.Garden.Is.Dry.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 3847175800 Nov 15 21:44 'Valeria.2020.S01E07.The.Package.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'
-rw-rw-r--+ 3 apps apps 4243261895 Nov 15 21:43 'Valeria.2020.S01E08.Ellipsis.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv'

MediaInfo:

General
Unique ID                                : 320779990477885460748371127483647557179 (0xF153FA9AA48BAE1F6CA0E53F61E27E3B)
Complete name                            : /mnt/userdata/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01/Valeria.2020.S01E01.The.Impostor.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 3.38 GiB
Duration                                 : 37 min 50 s
Overall bit rate                         : 12.8 Mb/s
Frame rate                               : 25.000 FPS
Writing application                      : mkvmerge 76.0 ('Celebration') 64-bit
Writing library                          : libebml v1.4.4 + libmatroska v1.7.1

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5@Main
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 37 min 50 s
Bit rate                                 : 11.2 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.054
Stream size                              : 2.97 GiB (88%)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio #1
ID                                       : 2
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 37 min 50 s
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 173 MiB (5%)
Title                                    : Spanish
Language                                 : Spanish
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No
Dialog Normalization                     : -27 dB
compr                                    : -0.28 dB
dialnorm_Average                         : -27 dB
dialnorm_Minimum                         : -27 dB
dialnorm_Maximum                         : -27 dB

Audio #2
ID                                       : 3
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 37 min 50 s
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 173 MiB (5%)
Title                                    : English
Language                                 : English
Service kind                             : Complete Main
Default                                  : No
Forced                                   : No
Dialog Normalization                     : -28 dB
compr                                    : -0.28 dB
dialnorm_Average                         : -28 dB
dialnorm_Minimum                         : -28 dB
dialnorm_Maximum                         : -28 dB

Text #1
ID                                       : 4
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : English (Forced)
Language                                 : English
Default                                  : No
Forced                                   : Yes

Text #2
ID                                       : 5
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Arabic
Language                                 : Arabic
Default                                  : No
Forced                                   : No

Text #3
ID                                       : 6
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Czech
Language                                 : Czech
Default                                  : No
Forced                                   : No

Text #4
ID                                       : 7
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Danish
Language                                 : Danish
Default                                  : No
Forced                                   : No

Text #5
ID                                       : 8
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : German
Language                                 : German
Default                                  : No
Forced                                   : No

Text #6
ID                                       : 9
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Modern Greek (1453-)
Language                                 : Greek
Default                                  : No
Forced                                   : No

Text #7
ID                                       : 10
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : English
Language                                 : English
Default                                  : No
Forced                                   : No

Text #8
ID                                       : 11
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : English (SDH)
Language                                 : English
Default                                  : No
Forced                                   : No

Text #9
ID                                       : 12
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Spanish (SDH)
Language                                 : Spanish
Default                                  : No
Forced                                   : No

Text #10
ID                                       : 13
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Finnish
Language                                 : Finnish
Default                                  : No
Forced                                   : No

Text #11
ID                                       : 14
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : French
Language                                 : French
Default                                  : No
Forced                                   : No

Text #12
ID                                       : 15
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Hebrew
Language                                 : Hebrew
Default                                  : No
Forced                                   : No

Text #13
ID                                       : 16
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Hungarian
Language                                 : Hungarian
Default                                  : No
Forced                                   : No

Text #14
ID                                       : 17
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Indonesian
Language                                 : Indonesian
Default                                  : No
Forced                                   : No

Text #15
ID                                       : 18
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Italian
Language                                 : Italian
Default                                  : No
Forced                                   : No

Text #16
ID                                       : 19
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Japanese
Language                                 : Japanese
Default                                  : No
Forced                                   : No

Text #17
ID                                       : 20
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Korean
Language                                 : Korean
Default                                  : No
Forced                                   : No

Text #18
ID                                       : 21
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Norwegian Bokmål
Language                                 : Norwegian Bokmal
Default                                  : No
Forced                                   : No

Text #19
ID                                       : 22
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Dutch
Language                                 : Dutch
Default                                  : No
Forced                                   : No

Text #20
ID                                       : 23
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Polish
Language                                 : Polish
Default                                  : No
Forced                                   : No

Text #21
ID                                       : 24
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Portuguese
Language                                 : Portuguese
Default                                  : No
Forced                                   : No

Text #22
ID                                       : 25
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Portuguese
Language                                 : Portuguese
Default                                  : No
Forced                                   : No

Text #23
ID                                       : 26
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Romanian
Language                                 : Romanian
Default                                  : No
Forced                                   : No

Text #24
ID                                       : 27
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Russian
Language                                 : Russian
Default                                  : No
Forced                                   : No

Text #25
ID                                       : 28
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Swedish
Language                                 : Swedish
Default                                  : No
Forced                                   : No

Text #26
ID                                       : 29
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Thai
Language                                 : Thai
Default                                  : No
Forced                                   : No

Text #27
ID                                       : 30
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Turkish
Language                                 : Turkish
Default                                  : No
Forced                                   : No

Text #28
ID                                       : 31
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Ukrainian
Language                                 : Ukrainian
Default                                  : No
Forced                                   : No

Text #29
ID                                       : 32
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Vietnamese
Language                                 : Vietnamese
Default                                  : No
Forced                                   : No

Text #30
ID                                       : 33
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Simplified, Chinese
Language                                 : Chinese
Default                                  : No
Forced                                   : No

Text #31
ID                                       : 34
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Title                                    : Traditional, Chinese
Language                                 : Chinese
Default                                  : No
Forced                                   : No

Menu
00:00:00.000                             : en:Part 01
00:35:51.450                             : en:Credits
@v3DJG6GL commented on GitHub (Nov 25, 2025): OK, I was just able to reproduce this error with debug logging activated. It happened with the same show it happened yesterday, although not the same episode. Yesterday the user reported stuttering while playing Episode 2. I was able to reproduce it with Episode 1: ``` /media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01/Valeria.2020.S01E01.The.Impostor.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv ``` ### Timeline ~16:39: Streaming started ~16:42: HTTP error 404 occured ~Approx 16:43 Reachable again ~16:44: Streaming started ~16:51: HTTP error 404 occured ~16:51:45: Reachable again ### Jellyfin logs: [log_20251125.tar.gz](https://github.com/user-attachments/files/23751910/log_20251125.tar.gz) ### FFmpeg logfiles: - _the FFmpeg logfiles concerning show Valeria are these two_: [FFmpeg.Transcode-2025-11-25_16-39-29_e81b9215442e780badbbbb13fb00d724_fc455ef1.log](https://github.com/user-attachments/files/23751927/FFmpeg.Transcode-2025-11-25_16-39-29_e81b9215442e780badbbbb13fb00d724_fc455ef1.log) [FFmpeg.DirectStream-2025-11-25_16-43-27_e81b9215442e780badbbbb13fb00d724_44def6b9.log](https://github.com/user-attachments/files/23751929/FFmpeg.DirectStream-2025-11-25_16-43-27_e81b9215442e780badbbbb13fb00d724_44def6b9.log) - Other FFmpeg logfiles: [FFmpeg.Transcode-2025-11-25_16-38-53_869297720cb22c8365866b901f468557_26219c41.log](https://github.com/user-attachments/files/23751928/FFmpeg.Transcode-2025-11-25_16-38-53_869297720cb22c8365866b901f468557_26219c41.log) [FFmpeg.Transcode-2025-11-25_16-38-58_869297720cb22c8365866b901f468557_3f0ee749.log](https://github.com/user-attachments/files/23751926/FFmpeg.Transcode-2025-11-25_16-38-58_869297720cb22c8365866b901f468557_3f0ee749.log) ### Directory: ``` /mnt/hdd-pool/userdata/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01 ``` ``` ls -la total 31193266 drwxrwxr-x 2 apps apps 10 Nov 15 21:45 . drwxrwxr-x 6 apps apps 6 Nov 16 10:48 .. -rw-rw-r--+ 3 apps apps 3627269470 Nov 15 21:44 'Valeria.2020.S01E01.The.Impostor.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 4566471373 Nov 15 21:44 'Valeria.2020.S01E02.Signs.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 4027918552 Nov 15 21:44 'Valeria.2020.S01E03.Alaska.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 3991571672 Nov 15 21:44 'Valeria.2020.S01E04.The.Pond.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 3638101940 Nov 15 21:44 'Valeria.2020.S01E05.Mr.Champi.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 4025381634 Nov 15 21:44 'Valeria.2020.S01E06.My.Garden.Is.Dry.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 3847175800 Nov 15 21:44 'Valeria.2020.S01E07.The.Package.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' -rw-rw-r--+ 3 apps apps 4243261895 Nov 15 21:43 'Valeria.2020.S01E08.Ellipsis.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv' ``` ### MediaInfo: ``` General Unique ID : 320779990477885460748371127483647557179 (0xF153FA9AA48BAE1F6CA0E53F61E27E3B) Complete name : /mnt/userdata/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01/Valeria.2020.S01E01.The.Impostor.[ES+EN].[EAC3.5.1].WEBDL-2160p.[10bit.HEVC]-XEBEC.mkv Format : Matroska Format version : Version 4 File size : 3.38 GiB Duration : 37 min 50 s Overall bit rate : 12.8 Mb/s Frame rate : 25.000 FPS Writing application : mkvmerge 76.0 ('Celebration') 64-bit Writing library : libebml v1.4.4 + libmatroska v1.7.1 Video ID : 1 Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L5@Main Codec ID : V_MPEGH/ISO/HEVC Duration : 37 min 50 s Bit rate : 11.2 Mb/s Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 25.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 10 bits Bits/(Pixel*Frame) : 0.054 Stream size : 2.97 GiB (88%) Default : Yes Forced : No Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio #1 ID : 2 Format : E-AC-3 Format/Info : Enhanced AC-3 Commercial name : Dolby Digital Plus Codec ID : A_EAC3 Duration : 37 min 50 s Bit rate mode : Constant Bit rate : 640 kb/s Channel(s) : 6 channels Channel layout : L R C LFE Ls Rs Sampling rate : 48.0 kHz Frame rate : 31.250 FPS (1536 SPF) Compression mode : Lossy Stream size : 173 MiB (5%) Title : Spanish Language : Spanish Service kind : Complete Main Default : Yes Forced : No Dialog Normalization : -27 dB compr : -0.28 dB dialnorm_Average : -27 dB dialnorm_Minimum : -27 dB dialnorm_Maximum : -27 dB Audio #2 ID : 3 Format : E-AC-3 Format/Info : Enhanced AC-3 Commercial name : Dolby Digital Plus Codec ID : A_EAC3 Duration : 37 min 50 s Bit rate mode : Constant Bit rate : 640 kb/s Channel(s) : 6 channels Channel layout : L R C LFE Ls Rs Sampling rate : 48.0 kHz Frame rate : 31.250 FPS (1536 SPF) Compression mode : Lossy Stream size : 173 MiB (5%) Title : English Language : English Service kind : Complete Main Default : No Forced : No Dialog Normalization : -28 dB compr : -0.28 dB dialnorm_Average : -28 dB dialnorm_Minimum : -28 dB dialnorm_Maximum : -28 dB Text #1 ID : 4 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : English (Forced) Language : English Default : No Forced : Yes Text #2 ID : 5 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Arabic Language : Arabic Default : No Forced : No Text #3 ID : 6 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Czech Language : Czech Default : No Forced : No Text #4 ID : 7 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Danish Language : Danish Default : No Forced : No Text #5 ID : 8 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : German Language : German Default : No Forced : No Text #6 ID : 9 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Modern Greek (1453-) Language : Greek Default : No Forced : No Text #7 ID : 10 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : English Language : English Default : No Forced : No Text #8 ID : 11 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : English (SDH) Language : English Default : No Forced : No Text #9 ID : 12 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Spanish (SDH) Language : Spanish Default : No Forced : No Text #10 ID : 13 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Finnish Language : Finnish Default : No Forced : No Text #11 ID : 14 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : French Language : French Default : No Forced : No Text #12 ID : 15 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Hebrew Language : Hebrew Default : No Forced : No Text #13 ID : 16 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Hungarian Language : Hungarian Default : No Forced : No Text #14 ID : 17 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Indonesian Language : Indonesian Default : No Forced : No Text #15 ID : 18 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Italian Language : Italian Default : No Forced : No Text #16 ID : 19 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Japanese Language : Japanese Default : No Forced : No Text #17 ID : 20 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Korean Language : Korean Default : No Forced : No Text #18 ID : 21 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Norwegian Bokmål Language : Norwegian Bokmal Default : No Forced : No Text #19 ID : 22 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Dutch Language : Dutch Default : No Forced : No Text #20 ID : 23 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Polish Language : Polish Default : No Forced : No Text #21 ID : 24 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Portuguese Language : Portuguese Default : No Forced : No Text #22 ID : 25 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Portuguese Language : Portuguese Default : No Forced : No Text #23 ID : 26 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Romanian Language : Romanian Default : No Forced : No Text #24 ID : 27 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Russian Language : Russian Default : No Forced : No Text #25 ID : 28 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Swedish Language : Swedish Default : No Forced : No Text #26 ID : 29 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Thai Language : Thai Default : No Forced : No Text #27 ID : 30 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Turkish Language : Turkish Default : No Forced : No Text #28 ID : 31 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Ukrainian Language : Ukrainian Default : No Forced : No Text #29 ID : 32 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Vietnamese Language : Vietnamese Default : No Forced : No Text #30 ID : 33 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Simplified, Chinese Language : Chinese Default : No Forced : No Text #31 ID : 34 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Title : Traditional, Chinese Language : Chinese Default : No Forced : No Menu 00:00:00.000 : en:Part 01 00:35:51.450 : en:Credits ```
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@v3DJG6GL commented on GitHub (Nov 25, 2025):

In case it helps:
here is another crash I was able to reproduce with the same episode:

Timeline:

~18:12:25 Streaming started
~18:17:15: HTTP error 404
~18:18:30: Reachable again

Jellyfin logs:

log_20251125_180800.tar.gz

FFmpeg logfiles:

FFmpeg.Transcode-2025-11-25_18-12-28_e81b9215442e780badbbbb13fb00d724_4bfd72aa.log
FFmpeg.DirectStream-2025-11-25_18-13-37_e81b9215442e780badbbbb13fb00d724_5a81d510.log
FFmpeg.Transcode-2025-11-25_18-12-23_e81b9215442e780badbbbb13fb00d724_027d39fd.log
FFmpeg.DirectStream-2025-11-25_18-13-36_e81b9215442e780badbbbb13fb00d724_bbbce852.log

@v3DJG6GL commented on GitHub (Nov 25, 2025): In case it helps: here is another crash I was able to reproduce with the same episode: ### Timeline: ~18:12:25 Streaming started ~18:17:15: HTTP error 404 ~18:18:30: Reachable again ### Jellyfin logs: [log_20251125_180800.tar.gz](https://github.com/user-attachments/files/23752629/log_20251125_180800.tar.gz) ### FFmpeg logfiles: [FFmpeg.Transcode-2025-11-25_18-12-28_e81b9215442e780badbbbb13fb00d724_4bfd72aa.log](https://github.com/user-attachments/files/23752635/FFmpeg.Transcode-2025-11-25_18-12-28_e81b9215442e780badbbbb13fb00d724_4bfd72aa.log) [FFmpeg.DirectStream-2025-11-25_18-13-37_e81b9215442e780badbbbb13fb00d724_5a81d510.log](https://github.com/user-attachments/files/23752634/FFmpeg.DirectStream-2025-11-25_18-13-37_e81b9215442e780badbbbb13fb00d724_5a81d510.log) [FFmpeg.Transcode-2025-11-25_18-12-23_e81b9215442e780badbbbb13fb00d724_027d39fd.log](https://github.com/user-attachments/files/23752632/FFmpeg.Transcode-2025-11-25_18-12-23_e81b9215442e780badbbbb13fb00d724_027d39fd.log) [FFmpeg.DirectStream-2025-11-25_18-13-36_e81b9215442e780badbbbb13fb00d724_bbbce852.log](https://github.com/user-attachments/files/23752633/FFmpeg.DirectStream-2025-11-25_18-13-36_e81b9215442e780badbbbb13fb00d724_bbbce852.log)
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@v3DJG6GL commented on GitHub (Nov 25, 2025):

Okay, another update:

  • The HTTP 404 error is mainly caused by the Host (Kurbernetes) system due to Readiness/Liveness Probes: Since Jellyfin does not answer anymore to these pings tn those situations, Jellyfin container is killed at a certain point after reaching timeout.
  • After completely disable Readiness/Liveness/Startup Probes, Jellyfin only gets super slow and not really usable until not responding anymore at all, but is not reaching the 404 error.

I was able to reproduce the issue again with the same episode:

Timeline:

  • Hardware acceleration enabled (Nvidia NVENC):
    ~20:10:50: Streaming started
    ~20:14:00: Jellyfin is getting super slow
    ~20:18:30: I closed the tab containing the Stream. Shortly after, Jellyfin was responsive again.

  • Hardware acceleration disabled (CPU decoding/encoding):
    ~22:47:40: Streaming started
    ~22:49:00: Jellyfin is getting super slow
    ~22:50: I closed the tab containing the Stream. Shortly after, Jellyfin was responsive again.

Jellyfin logs: Streaming started

FFmpeg logs:

Additional Notes:

  • I have renamed the source file to not use any special characters. That didn't helped.
  • Transcoding:
    • I disabled Allow encoding in HEVC format - still same behaviour.
    • I disabled Allow encoding in AV1 format - still same behaviour.
    • I disabled Enable hardware encoding - still same behaviour.
    • I disabled Enable enhanced NVDEC decoder - still same behaviour.
    • I disabled Enable hardware decoding for HEVC - still same behaviour. Additionally, CPU load is of course much higher with that disabled.
    • When I disable Hardware acceleration all together, the behaviour is still the same.
@v3DJG6GL commented on GitHub (Nov 25, 2025): Okay, another update: - The HTTP 404 error is mainly caused by the Host (Kurbernetes) system due to Readiness/Liveness Probes: Since Jellyfin does not answer anymore to these pings tn those situations, Jellyfin container is killed at a certain point after reaching timeout. - After completely disable Readiness/Liveness/Startup Probes, Jellyfin only gets super slow and not really usable until not responding anymore at all, but is not reaching the 404 error. I was able to reproduce the issue again with the same episode: ### Timeline: - Hardware acceleration enabled (Nvidia NVENC): ~20:10:50: Streaming started ~20:14:00: Jellyfin is getting super slow ~20:18:30: I closed the tab containing the Stream. Shortly after, Jellyfin was responsive again. - Hardware acceleration disabled (CPU decoding/encoding): ~22:47:40: Streaming started ~22:49:00: Jellyfin is getting super slow ~22:50: I closed the tab containing the Stream. Shortly after, Jellyfin was responsive again. ### Jellyfin logs: Streaming started - Hardware acceleration enabled (Nvidia NVENC): [log_20251125_200800.tar.gz](https://github.com/user-attachments/files/23754779/log_20251125_200800.tar.gz) - Hardware acceleration disabled (CPU decoding/encoding): [log_20251125_224100.tar.gz](https://github.com/user-attachments/files/23756789/log_20251125_224100.tar.gz) ### FFmpeg logs: - Hardware acceleration enabled (Nvidia NVENC): [FFmpeg.Transcode-2025-11-25_20-10-53_b61e274c82640fa7616a1815aa611691_c1db013f.log](https://github.com/user-attachments/files/23754780/FFmpeg.Transcode-2025-11-25_20-10-53_b61e274c82640fa7616a1815aa611691_c1db013f.log) - Hardware acceleration disabled (CPU decoding/encoding): [FFmpeg.Transcode-2025-11-25_22-47-33_b61e274c82640fa7616a1815aa611691_3e1aa789.log](https://github.com/user-attachments/files/23756802/FFmpeg.Transcode-2025-11-25_22-47-33_b61e274c82640fa7616a1815aa611691_3e1aa789.log) [FFmpeg.Transcode-2025-11-25_22-47-26_b61e274c82640fa7616a1815aa611691_5a74f789.log](https://github.com/user-attachments/files/23756803/FFmpeg.Transcode-2025-11-25_22-47-26_b61e274c82640fa7616a1815aa611691_5a74f789.log) ### Additional Notes: - I have renamed the source file to not use any special characters. That didn't helped. - Transcoding: - I disabled _Allow encoding in HEVC format_ - still same behaviour. - I disabled _Allow encoding in AV1 format_ - still same behaviour. - I disabled _Enable hardware encoding_ - still same behaviour. - I disabled _Enable enhanced NVDEC decoder_ - still same behaviour. - I disabled _Enable hardware decoding for HEVC_ - still same behaviour. Additionally, CPU load is of course much higher with that disabled. - When I disable _Hardware acceleration_ all together, the behaviour is still the same.
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@HammyHavoc commented on GitHub (Nov 25, 2025):

Out of curiosity, what file system are you using?

@HammyHavoc commented on GitHub (Nov 25, 2025): Out of curiosity, what file system are you using?
Author
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@v3DJG6GL commented on GitHub (Nov 25, 2025):

Out of curiosity, what file system are you using?

ZFS (RAIDZ2)

@v3DJG6GL commented on GitHub (Nov 25, 2025): > Out of curiosity, what file system are you using? ZFS (RAIDZ2)
Author
Owner

@HammyHavoc commented on GitHub (Nov 25, 2025):

Out of curiosity, what file system are you using?

ZFS (RAIDZ2)

Also on ZFS at my end and been digging into potential issues today.

I've been fiddling about with the value of md_num_stripes, vm.dirty_background_ratio and vm.dirty_ratio in Unraid.

I'm not saying I've solved anything (still issues with crashing and scanning the library at a certain percentage, and a server-perf-hurting resource spike from Jellyfin before the Jellyfin Docker container crashes, at least once per day), but I am seeing much better performance overall.

Will keep digging too! Please keep documenting as you have been.

@HammyHavoc commented on GitHub (Nov 25, 2025): > > Out of curiosity, what file system are you using? > > ZFS (RAIDZ2) Also on ZFS at my end and been digging into potential issues today. I've been fiddling about with the value of `md_num_stripes`, `vm.dirty_background_ratio` and `vm.dirty_ratio` in Unraid. I'm not saying I've solved anything (still issues with crashing and scanning the library at a certain percentage, and a server-perf-hurting resource spike from Jellyfin before the Jellyfin Docker container crashes, at least once per day), but I am seeing much better performance overall. Will keep digging too! Please keep documenting as you have been.
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@v3DJG6GL commented on GitHub (Dec 5, 2025):

Some more findings:
I tried to remove on of the series - Valeria - that causes the issue and run into the issue described at #15658.
After manually removing the episodes entries from jellyfin.db, I was able to remove the series entry with Jellyfin. After moving the series back to library folders, jellyfin correctly imported the series again. And also moving the series around inside library directories works: orphaned series entry is correctly deleted from jellyfin, new location is correctly imported.

However, I am still facing the same issue freezing/crashing when trying to play episodes with transcode enabled.
BUT: I got aware that it really depends on the client who you use:

  • If I use Jellyfin Web (HTML Video Player) I am facing the freezing/crashing issue.

  • If I use Jellyfin Android with Video Player Type set to Web Player (Jellyfin Settings --> Client Settings --> Video Player Type --> HTML Video Player) I am also facing the freezing/crashing issue.

  • If I use Jellyfin Android with Video Player Type set to Integrated Player (Jellyfin Settings --> Client Settings --> Video Player Type --> ExoPlayer) I am NOT facing the freezing/crashing issue!

  • I even remuxed/transcoded S01E01:

    • Remuxed S01E01 and removed all subtitles: Same issues.
    • Remuxed S01E01 and removed all subtitles + audio tracks: Same issues.
    • Remuxed S01E01 and removed all subtitles + audio tracks + chapter markers: Same issues.
    • Transcoded S01E01 with HandBrake from H265 --> AV1 to exclude any issues related to the container/video codec. The issue, however, is the same for the newly encoded file.
  • I now tried once again to play the transcoded episode with the new findings I did before:

    • If I play the transcoded episode with HTML Video Player (either way through Jellyfin Web or Jellyfin Android) I have those same freezing/crashing issues.
    • When I play the transcoded episode with Jellyfin Android set to Integrated Player Playback/Streaming is working flawlessly!
  • Reason for transcode is always

Reason for transcoding
The video's bitrate exceeds the limit
@v3DJG6GL commented on GitHub (Dec 5, 2025): Some more findings: I tried to remove on of the series - _Valeria_ - that causes the issue and run into the issue described at #15658. After manually removing the episodes entries from _jellyfin.db_, I was able to remove the series entry with Jellyfin. After moving the series back to library folders, jellyfin correctly imported the series again. And also moving the series around inside library directories works: orphaned series entry is correctly deleted from jellyfin, new location is correctly imported. However, I am still facing the same issue freezing/crashing when trying to play episodes with transcode enabled. BUT: I got aware that it really depends on the client who you use: - If I use Jellyfin Web (_HTML Video Player_) I am facing the freezing/crashing issue. - If I use Jellyfin Android with _Video Player Type_ set to _Web Player_ (_Jellyfin Settings_ --> _Client Settings_ --> _Video Player Type_ --> _HTML Video Player_) I am also facing the freezing/crashing issue. - If I use Jellyfin Android with _Video Player Type_ set to _Integrated Player_ (_Jellyfin Settings_ --> _Client Settings_ --> _Video Player Type_ --> _ExoPlayer_) **I am _NOT_ facing the freezing/crashing issue!** - I even remuxed/transcoded _S01E01_: - Remuxed _S01E01_ and removed all subtitles: Same issues. - Remuxed _S01E01_ and removed all subtitles + audio tracks: Same issues. - Remuxed _S01E01_ and removed all subtitles + audio tracks + chapter markers: Same issues. - Transcoded _S01E01_ with _HandBrake_ from H265 --> AV1 to exclude any issues related to the container/video codec. The issue, however, is the same for the newly encoded file. - I now tried once again to play the transcoded episode with the new findings I did before: - If I play the transcoded episode with _HTML Video Player_ (either way through _Jellyfin Web_ or _Jellyfin Android_) I have those same freezing/crashing issues. - When I play the transcoded episode with _Jellyfin Android_ set to _Integrated Player_ **Playback/Streaming is working flawlessly!** - Reason for transcode is always ``` Reason for transcoding The video's bitrate exceeds the limit ```
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@v3DJG6GL commented on GitHub (Dec 7, 2025):

Another Update:
I even retried it with a complete different release.
The issue, however, is still the same: Transcoding leads to freezes/crashes of Jellyfin server, but only if Jellyfin Web is used for playback (HTML Video Player), or Jellyfin Android with Web Player selected (Jellyfin Settings --> Client Settings --> Video Player Type --> HTML Video Player)

The issue persists even with other Playback settings: Even Direct Streaming leads to freezes/crashes of Jellyfin Server:

The video stream is compatible with the device, but has an incompatible audio format (DTS, Dolby TrueHD, etc.) or number of audio channels. The video stream will be repackaged losslessly on the fly before being sent to the device. Only the audio stream will be transcoded.
Power consumed by direct streaming usually depends on the audio profile. Only the video stream is lossless.

As soon as I use the Integrated Player (Jellyfin Settings --> Client Settings --> Video Player Type --> ExoPlayer) I am NOT facing the freezing/crashing issue when transcoding the episode!

Here's the MediaInfo for the episode:

General
Unique ID                                : 183030405995007521093074522968573911120 (0x89B25FBC195BAB8BB5DB93A0FF68A050)
Complete name                            : /mnt/<REDACTED>/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01/Valeria.S01E01.The.Impostor.2160p.NF.WEB-DL.DDP.5.1.H.265-CHDWEB.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 3.24 GiB
Duration                                 : 37 min 49 s
Overall bit rate                         : 12.3 Mb/s
Frame rate                               : 25.000 FPS
Writing application                      : mkvmerge 65.0.0 ('Too Much') 64-bit
Writing library                          : libebml v1.4.2 + libmatroska v1.6.3
Muxer                                    : Rainbow Island

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5@Main
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 37 min 49 s
Bit rate                                 : 11.6 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 25.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.056
Stream size                              : 3.07 GiB (95%)
Language                                 : Spanish (ES)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 37 min 49 s
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 173 MiB (5%)
Language                                 : Spanish (ES)
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No
Dialog Normalization                     : -24 dB
compr                                    : -0.28 dB
dialnorm_Average                         : -24 dB
dialnorm_Minimum                         : -24 dB
dialnorm_Maximum                         : -24 dB

Text #1
ID                                       : 3
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 35 min 47 s
Bit rate                                 : 76 b/s
Frame rate                               : 0.283 FPS
Count of elements                        : 607
Stream size                              : 20.0 KiB (0%)
Title                                    : SDH
Language                                 : Spanish (ES)
Default                                  : No
Forced                                   : No

Text #2
ID                                       : 4
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 79 b/s
Frame rate                               : 0.276 FPS
Count of elements                        : 613
Stream size                              : 21.5 KiB (0%)
Title                                    : Simplified
Language                                 : Chinese (Simplified)
Default                                  : No
Forced                                   : No

Text #3
ID                                       : 5
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 5 s
Bit rate                                 : 74 b/s
Frame rate                               : 0.276 FPS
Count of elements                        : 614
Stream size                              : 20.2 KiB (0%)
Title                                    : Traditional
Language                                 : Chinese (Traditional)
Default                                  : No
Forced                                   : No

Text #4
ID                                       : 6
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 127 b/s
Frame rate                               : 0.273 FPS
Count of elements                        : 608
Stream size                              : 34.7 KiB (0%)
Language                                 : Arabic
Default                                  : No
Forced                                   : No

Text #5
ID                                       : 7
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 65 b/s
Frame rate                               : 0.271 FPS
Count of elements                        : 603
Stream size                              : 17.7 KiB (0%)
Language                                 : Czech
Default                                  : No
Forced                                   : No

Text #6
ID                                       : 8
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 68 b/s
Frame rate                               : 0.225 FPS
Count of elements                        : 500
Stream size                              : 18.5 KiB (0%)
Language                                 : Danish
Default                                  : No
Forced                                   : No

Text #7
ID                                       : 9
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 65 b/s
Frame rate                               : 0.240 FPS
Count of elements                        : 533
Stream size                              : 17.9 KiB (0%)
Language                                 : German
Default                                  : No
Forced                                   : No

Text #8
ID                                       : 10
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 113 b/s
Frame rate                               : 0.253 FPS
Count of elements                        : 563
Stream size                              : 30.8 KiB (0%)
Language                                 : Greek
Default                                  : No
Forced                                   : No

Text #9
ID                                       : 11
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 35 min 44 s
Bit rate                                 : 93 b/s
Frame rate                               : 0.352 FPS
Count of elements                        : 755
Stream size                              : 24.5 KiB (0%)
Title                                    : SDH
Language                                 : English
Default                                  : No
Forced                                   : No

Text #10
ID                                       : 12
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 35 min 44 s
Bit rate                                 : 74 b/s
Frame rate                               : 0.281 FPS
Count of elements                        : 603
Stream size                              : 19.6 KiB (0%)
Language                                 : English
Default                                  : No
Forced                                   : No

Text #11
ID                                       : 13
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 63 b/s
Frame rate                               : 0.195 FPS
Count of elements                        : 434
Stream size                              : 17.2 KiB (0%)
Language                                 : Finnish
Default                                  : No
Forced                                   : No

Text #12
ID                                       : 14
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 64 b/s
Frame rate                               : 0.248 FPS
Count of elements                        : 552
Stream size                              : 17.4 KiB (0%)
Language                                 : French
Default                                  : No
Forced                                   : No

Text #13
ID                                       : 15
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 35 min 48 s
Bit rate                                 : 113 b/s
Frame rate                               : 0.275 FPS
Count of elements                        : 590
Stream size                              : 29.8 KiB (0%)
Language                                 : Hebrew
Default                                  : No
Forced                                   : No

Text #14
ID                                       : 16
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 69 b/s
Frame rate                               : 0.273 FPS
Count of elements                        : 608
Stream size                              : 18.9 KiB (0%)
Language                                 : Hungarian
Default                                  : No
Forced                                   : No

Text #15
ID                                       : 17
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 64 b/s
Frame rate                               : 0.275 FPS
Count of elements                        : 611
Stream size                              : 17.5 KiB (0%)
Language                                 : Indonesian
Default                                  : No
Forced                                   : No

Text #16
ID                                       : 18
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 69 b/s
Frame rate                               : 0.246 FPS
Count of elements                        : 547
Stream size                              : 18.7 KiB (0%)
Language                                 : Italian
Default                                  : No
Forced                                   : No

Text #17
ID                                       : 19
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 65 b/s
Frame rate                               : 0.285 FPS
Count of elements                        : 634
Stream size                              : 17.9 KiB (0%)
Language                                 : Japanese
Default                                  : No
Forced                                   : No

Text #18
ID                                       : 20
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 87 b/s
Frame rate                               : 0.276 FPS
Count of elements                        : 614
Stream size                              : 23.7 KiB (0%)
Language                                 : Korean
Default                                  : No
Forced                                   : No

Text #19
ID                                       : 21
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 62 b/s
Frame rate                               : 0.242 FPS
Count of elements                        : 539
Stream size                              : 16.9 KiB (0%)
Language                                 : Norwegian Bokmal
Default                                  : No
Forced                                   : No

Text #20
ID                                       : 22
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 57 b/s
Frame rate                               : 0.211 FPS
Count of elements                        : 470
Stream size                              : 15.5 KiB (0%)
Language                                 : Dutch
Default                                  : No
Forced                                   : No

Text #21
ID                                       : 23
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 61 b/s
Frame rate                               : 0.264 FPS
Count of elements                        : 588
Stream size                              : 16.8 KiB (0%)
Language                                 : Polish
Default                                  : No
Forced                                   : No

Text #22
ID                                       : 24
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 61 b/s
Frame rate                               : 0.265 FPS
Count of elements                        : 590
Stream size                              : 16.7 KiB (0%)
Title                                    : Brazil
Language                                 : Portuguese (BR)
Default                                  : No
Forced                                   : No

Text #23
ID                                       : 25
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 66 b/s
Frame rate                               : 0.263 FPS
Count of elements                        : 584
Stream size                              : 18.0 KiB (0%)
Language                                 : Portuguese (PT)
Default                                  : No
Forced                                   : No

Text #24
ID                                       : 26
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 76 b/s
Frame rate                               : 0.238 FPS
Count of elements                        : 529
Stream size                              : 20.7 KiB (0%)
Language                                 : Romanian
Default                                  : No
Forced                                   : No

Text #25
ID                                       : 27
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 103 b/s
Frame rate                               : 0.229 FPS
Count of elements                        : 510
Stream size                              : 28.1 KiB (0%)
Language                                 : Russian
Default                                  : No
Forced                                   : No

Text #26
ID                                       : 28
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 65 b/s
Frame rate                               : 0.222 FPS
Count of elements                        : 494
Stream size                              : 17.8 KiB (0%)
Language                                 : Swedish
Default                                  : No
Forced                                   : No

Text #27
ID                                       : 29
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 194 b/s
Frame rate                               : 0.276 FPS
Count of elements                        : 613
Stream size                              : 52.8 KiB (0%)
Language                                 : Thai
Default                                  : No
Forced                                   : No

Text #28
ID                                       : 30
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 68 b/s
Frame rate                               : 0.234 FPS
Count of elements                        : 521
Stream size                              : 18.5 KiB (0%)
Language                                 : Turkish
Default                                  : No
Forced                                   : No

Text #29
ID                                       : 31
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 107 b/s
Frame rate                               : 0.276 FPS
Count of elements                        : 613
Stream size                              : 29.2 KiB (0%)
Language                                 : Ukrainian
Default                                  : No
Forced                                   : No

Text #30
ID                                       : 32
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 37 min 3 s
Bit rate                                 : 94 b/s
Frame rate                               : 0.264 FPS
Count of elements                        : 588
Stream size                              : 25.6 KiB (0%)
Language                                 : Vietnamese
Default                                  : No
Forced                                   : No

Menu
00:35:52.000                             : en:End Credits

@v3DJG6GL commented on GitHub (Dec 7, 2025): Another Update: I even retried it with a complete different release. The issue, however, is still the same: Transcoding leads to freezes/crashes of Jellyfin server, but only if Jellyfin Web is used for playback (_HTML Video Player_), or Jellyfin Android with Web Player selected (_Jellyfin Settings_ --> _Client Settings_ --> _Video Player Type_ --> _HTML Video Player_) The issue persists even with other Playback settings: Even _Direct Streaming_ leads to freezes/crashes of Jellyfin Server: ``` The video stream is compatible with the device, but has an incompatible audio format (DTS, Dolby TrueHD, etc.) or number of audio channels. The video stream will be repackaged losslessly on the fly before being sent to the device. Only the audio stream will be transcoded. Power consumed by direct streaming usually depends on the audio profile. Only the video stream is lossless. ``` As soon as I use the _Integrated Player_ (Jellyfin Settings --> Client Settings --> Video Player Type --> ExoPlayer) **I am NOT facing the freezing/crashing issue when transcoding the episode!** Here's the _MediaInfo_ for the episode: ``` General Unique ID : 183030405995007521093074522968573911120 (0x89B25FBC195BAB8BB5DB93A0FF68A050) Complete name : /mnt/<REDACTED>/media/<REDACTED>/series/Valeria (2020) [imdbid-tt9731288]/Season 01/Valeria.S01E01.The.Impostor.2160p.NF.WEB-DL.DDP.5.1.H.265-CHDWEB.mkv Format : Matroska Format version : Version 4 File size : 3.24 GiB Duration : 37 min 49 s Overall bit rate : 12.3 Mb/s Frame rate : 25.000 FPS Writing application : mkvmerge 65.0.0 ('Too Much') 64-bit Writing library : libebml v1.4.2 + libmatroska v1.6.3 Muxer : Rainbow Island Video ID : 1 Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L5@Main Codec ID : V_MPEGH/ISO/HEVC Duration : 37 min 49 s Bit rate : 11.6 Mb/s Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 25.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 10 bits Bits/(Pixel*Frame) : 0.056 Stream size : 3.07 GiB (95%) Language : Spanish (ES) Default : Yes Forced : No Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio ID : 2 Format : E-AC-3 Format/Info : Enhanced AC-3 Commercial name : Dolby Digital Plus Codec ID : A_EAC3 Duration : 37 min 49 s Bit rate mode : Constant Bit rate : 640 kb/s Channel(s) : 6 channels Channel layout : L R C LFE Ls Rs Sampling rate : 48.0 kHz Frame rate : 31.250 FPS (1536 SPF) Compression mode : Lossy Stream size : 173 MiB (5%) Language : Spanish (ES) Service kind : Complete Main Default : Yes Forced : No Dialog Normalization : -24 dB compr : -0.28 dB dialnorm_Average : -24 dB dialnorm_Minimum : -24 dB dialnorm_Maximum : -24 dB Text #1 ID : 3 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 35 min 47 s Bit rate : 76 b/s Frame rate : 0.283 FPS Count of elements : 607 Stream size : 20.0 KiB (0%) Title : SDH Language : Spanish (ES) Default : No Forced : No Text #2 ID : 4 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 79 b/s Frame rate : 0.276 FPS Count of elements : 613 Stream size : 21.5 KiB (0%) Title : Simplified Language : Chinese (Simplified) Default : No Forced : No Text #3 ID : 5 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 5 s Bit rate : 74 b/s Frame rate : 0.276 FPS Count of elements : 614 Stream size : 20.2 KiB (0%) Title : Traditional Language : Chinese (Traditional) Default : No Forced : No Text #4 ID : 6 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 127 b/s Frame rate : 0.273 FPS Count of elements : 608 Stream size : 34.7 KiB (0%) Language : Arabic Default : No Forced : No Text #5 ID : 7 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 65 b/s Frame rate : 0.271 FPS Count of elements : 603 Stream size : 17.7 KiB (0%) Language : Czech Default : No Forced : No Text #6 ID : 8 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 68 b/s Frame rate : 0.225 FPS Count of elements : 500 Stream size : 18.5 KiB (0%) Language : Danish Default : No Forced : No Text #7 ID : 9 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 65 b/s Frame rate : 0.240 FPS Count of elements : 533 Stream size : 17.9 KiB (0%) Language : German Default : No Forced : No Text #8 ID : 10 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 113 b/s Frame rate : 0.253 FPS Count of elements : 563 Stream size : 30.8 KiB (0%) Language : Greek Default : No Forced : No Text #9 ID : 11 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 35 min 44 s Bit rate : 93 b/s Frame rate : 0.352 FPS Count of elements : 755 Stream size : 24.5 KiB (0%) Title : SDH Language : English Default : No Forced : No Text #10 ID : 12 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 35 min 44 s Bit rate : 74 b/s Frame rate : 0.281 FPS Count of elements : 603 Stream size : 19.6 KiB (0%) Language : English Default : No Forced : No Text #11 ID : 13 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 63 b/s Frame rate : 0.195 FPS Count of elements : 434 Stream size : 17.2 KiB (0%) Language : Finnish Default : No Forced : No Text #12 ID : 14 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 64 b/s Frame rate : 0.248 FPS Count of elements : 552 Stream size : 17.4 KiB (0%) Language : French Default : No Forced : No Text #13 ID : 15 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 35 min 48 s Bit rate : 113 b/s Frame rate : 0.275 FPS Count of elements : 590 Stream size : 29.8 KiB (0%) Language : Hebrew Default : No Forced : No Text #14 ID : 16 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 69 b/s Frame rate : 0.273 FPS Count of elements : 608 Stream size : 18.9 KiB (0%) Language : Hungarian Default : No Forced : No Text #15 ID : 17 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 64 b/s Frame rate : 0.275 FPS Count of elements : 611 Stream size : 17.5 KiB (0%) Language : Indonesian Default : No Forced : No Text #16 ID : 18 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 69 b/s Frame rate : 0.246 FPS Count of elements : 547 Stream size : 18.7 KiB (0%) Language : Italian Default : No Forced : No Text #17 ID : 19 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 65 b/s Frame rate : 0.285 FPS Count of elements : 634 Stream size : 17.9 KiB (0%) Language : Japanese Default : No Forced : No Text #18 ID : 20 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 87 b/s Frame rate : 0.276 FPS Count of elements : 614 Stream size : 23.7 KiB (0%) Language : Korean Default : No Forced : No Text #19 ID : 21 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 62 b/s Frame rate : 0.242 FPS Count of elements : 539 Stream size : 16.9 KiB (0%) Language : Norwegian Bokmal Default : No Forced : No Text #20 ID : 22 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 57 b/s Frame rate : 0.211 FPS Count of elements : 470 Stream size : 15.5 KiB (0%) Language : Dutch Default : No Forced : No Text #21 ID : 23 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 61 b/s Frame rate : 0.264 FPS Count of elements : 588 Stream size : 16.8 KiB (0%) Language : Polish Default : No Forced : No Text #22 ID : 24 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 61 b/s Frame rate : 0.265 FPS Count of elements : 590 Stream size : 16.7 KiB (0%) Title : Brazil Language : Portuguese (BR) Default : No Forced : No Text #23 ID : 25 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 66 b/s Frame rate : 0.263 FPS Count of elements : 584 Stream size : 18.0 KiB (0%) Language : Portuguese (PT) Default : No Forced : No Text #24 ID : 26 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 76 b/s Frame rate : 0.238 FPS Count of elements : 529 Stream size : 20.7 KiB (0%) Language : Romanian Default : No Forced : No Text #25 ID : 27 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 103 b/s Frame rate : 0.229 FPS Count of elements : 510 Stream size : 28.1 KiB (0%) Language : Russian Default : No Forced : No Text #26 ID : 28 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 65 b/s Frame rate : 0.222 FPS Count of elements : 494 Stream size : 17.8 KiB (0%) Language : Swedish Default : No Forced : No Text #27 ID : 29 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 194 b/s Frame rate : 0.276 FPS Count of elements : 613 Stream size : 52.8 KiB (0%) Language : Thai Default : No Forced : No Text #28 ID : 30 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 68 b/s Frame rate : 0.234 FPS Count of elements : 521 Stream size : 18.5 KiB (0%) Language : Turkish Default : No Forced : No Text #29 ID : 31 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 107 b/s Frame rate : 0.276 FPS Count of elements : 613 Stream size : 29.2 KiB (0%) Language : Ukrainian Default : No Forced : No Text #30 ID : 32 Format : UTF-8 Codec ID : S_TEXT/UTF8 Codec ID/Info : UTF-8 Plain Text Duration : 37 min 3 s Bit rate : 94 b/s Frame rate : 0.264 FPS Count of elements : 588 Stream size : 25.6 KiB (0%) Language : Vietnamese Default : No Forced : No Menu 00:35:52.000 : en:End Credits ```
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@v3DJG6GL commented on GitHub (Dec 10, 2025):

Since this issue occurs when HTML Video Player is involved, I logged Console Output from my browser when playing a specific episode causing this issue

@v3DJG6GL commented on GitHub (Dec 10, 2025): Since this issue occurs when _HTML Video Player_ is involved, I logged _Console Output_ from my browser when playing a specific episode causing this issue - **Browser**: _LibreWolf v145.0.2-2_ (FireFox Fork) - **OS**: _Kubuntu v25.04_ - **Console Logging**: [console-export-2025-12-10_20-9-54.log](https://github.com/user-attachments/files/24086436/console-export-2025-12-10_20-9-54.log)
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Reference: starred/jellyfin#7828
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