Subtitle display/rendering delay in 10.10.3 w/subtitle extract & webOS client

[Lexx]

• Jellyfin server version : 10.10.3, upgraded earlier today from 10.8.8 successfully.
  
• plugin installed, status active: subtitle extract 4.0.0.0
  
• before playback test, did full library scan with "extract subtitles during library scan" checked on the plugin
  
• Installation method, platform: Windows installer (.exe), Windows 11, not portable method
  
• client: LG Smart TV, webOS TV UN7000PUB, software v. 04.50.90 - googling this, it's webOS 5.0 on LG's site
  
• media being played back: mkv container, two audio tracks - both DTS+ 5.1, default japanese.  two subtitle tracks, one set as default.  playback is default japanese audio, default sub enabled.  video codec HEVC
  
• expected behavior: upon playback start, subtitles displaying
  
• observed behavior: approximately 15 second delay on subtitle playback start.  For clarity: it's not that subtitles are displaying 15 seconds behind the audio/video stream, the subtitles start rendering onscreen 15 seconds after playback begins, - so I lose the first 15 seconds of subtitles.
  
• Current workaround: I wait until subtitles start appearing, then manually drag the playback back to start (not restart, drag it back to start).
  

Note: current IOS App doesn't have same behavior, it renders subtitles from start of playback or if there's a delay it's only a second or two.

I've attached the playback log.  to make things faster this is an excerpt - I restarted the server, used that timestamp, and copied everything from that timestamp forward into the attached text file.

Thanks in advance for the help.  I absolutely love Jellyfin it's been a joy to use.

[TheDreadPirate]

Is your C drive full? It is trying to dump the attachments and fails over and over.

[Lexx]

Is your C drive full?  It is trying to dump the attachments and fails over and over.

41GB free of 117GB total. Is there a way to get greater detail or verbosity level of the log? I'd like to see why the file write attempt is failing. In the meantime I can free up an additional...8-9 gigs of data on the C drive.

[TheDreadPirate]

I'm mainly concerned it about being 100% full. So 41GB free is fine.

Can you check if there are any sub folders in this directory?

C:\ProgramData\Jellyfin\Server\data\attachments

[Lexx]

I'm mainly concerned it about being 100% full.  So 41GB free is fine.

Can you check if there are any sub folders in this directory?

C:\ProgramData\Jellyfin\Server\data\attachments

Named folders, hex naming.  0-1-2-3-4-5-6-7-8-9-a-b-c-d-e-f.  Each folder contains 185 text files. A month or so ago I did run into an issue where the main drive got too full for jellyfin to function. Since then I've freed up drive space. Is this a consequence of that?

[TheDreadPirate]

That is definitely a possibility, but I wouldn't expect it to break in this way.

Can you try removing a show or a movie from the library folder, then "scan all libraries" so that it is removed. Jellyfin should cleanup all the data related to it. Once that scan completes, move the show or movie back into the library and scan again. Then run the subtitle extract job.

Once that finishes try watching this show/movie on your WebOS TV.

[Lexx]

I removed all content from library folders, rescanned all, added them back, rescanned all again, restarted server, and tried playing again.  Seeing same issue.  log attached.

[Lexx]

  jellyfin log dump 2025-01-21 after deleting contents of subtitles and data cache folders and restarting server.txt (Size: 60.02 KB / Downloads: 44)
I tried: stopping the server, deleting the contents of the attachments and subtitles folders (backed them up first) then restarted the server and tried playing the same file.  Same issue with delayed attachments but the log readout shows the subtitles are extracting.  still getting errors though.

[TheDreadPirate]

Let's blow away Jellyfin and start from scratch.

Stop Jellyfin
Backup C:\ProgramData\Jellyfin
Uninstall Jellyfin
Delete C:\ProgramData\Jellyfin and double check that C:\Program Files\Jellyfin is also deleted
Reinstall Jellyfin, make sure to right click the installer and run as admin.

Access the new Jellyfin instance in an incognito tab and go through the setup process, add your library, try again.

[Lexx]

Whoops unexpected issue. Add/remove programs can't find Jellyfin's uninstall.exe and I'm not finding it either manually. Instructions for removing it in this circumstance?