Playback problems after resuming unfinished episode

[jeliozver]

Jellyfin server 10.10.5 (started noticing since 10.10.3)
Client: WebOS (LG C3)
Platform: Windows 10 22H2
Connection: WiFI 6 TV is ~2 meters from the router and the server PC is connected via LAN cable

Recently started noticing weird issue where if i resume an episode that i did not watch entirely the previous day the playback freezes after 1-2 min of resuming the video and will never continue on its own, must skip forward to make it work, but again it would stop at some point.
Happens with both 1080p/2160p videos with or without transcoding. So to fix it i have to start multiple times or even click the start over button and manually go to the time it was before.
Sometimes while i do the start/stop cycle the webos app crashes and restarts with the memory consumption message.
I suspect its a buffering issue as it seems it stops buffering after the initial playback. Not sure which log files i should share there are a lot of the ffmpeg.remux ones from yesterday

If i start new episode that was never played there is no issues, runs perfectly fine.

[TheDreadPirate]

Can you share your main jellyfin server log via privatebin.net? log_20250128.log

If there are ffmpeg logs, share one or two of those.

[jeliozver]

Sure sharing the log from yesterday since it happened with Squid Game S02E04

log
https://privatebin.net/?908605837474d7cc...paEEazNBtf

ffmpeg
https://privatebin.net/?b387d8ec6dc9be2e...Q9QQBmwdC5
https://privatebin.net/?de77786f8cc8f2ce...P6WAep6mES

[TheDreadPirate]

One of the files you are having issues with, can you run remuxing it with the command below? Open a command prompt and type this.

Code:

cd C:\Program FIles\Jellyfin
.\ffmpeg.exe -fflags +genpts+igndts -i "H:\Path\to\problem\video.mkv" -map 0 -codec copy -max_muxing_queue_size 2048 -max_interleave_delta 0 -avoid_negative_ts disabled H:\newFile.mkv

[theguymadmax]

Default path on window will be in the jellyfin/server folder so command should be:

Code:

cd "C:\Program Files\Jellyfin\Server"

[jeliozver]

It completed successfully
[out#0/matroska @ 0000026c38f271c0] video:6081443KiB audio:705606KiB subtitle:966KiB other streams:0KiB global headers:0KiB muxing overhead: 0.048422%
size= 6791301KiB time=00:56:14.41 bitrate=16487.1kbits/s speed=20.8x
File plays fine in a player like MPC

I guess i should try adding it into the server and play it?

[TheDreadPirate]

Yes. Make a copy of the original and replace it with the new file and try to reproduce the problem.

[jeliozver]

Happened again, started let it run for 5 min, then do what i usually do when i leave episode unfinished. Click the back button on the top left, then home menu on remote and turn off tv.

For test i let it off for 1-2 minutes then started tv, jelly and resumed the episode, ran fine for about 2 min and froze again. After minute or so it actually played for 3-4 seconds with lagging then stopped again and it did not resume again (waited a minute or so) and clicked pause button on player, and went to tv main menu.
Noticed it was keep spamming files in cache\transcodes.
Now i actually have ffmpeg transcode filenames in logs too

jellylog
https://privatebin.net/?7eae88cd810321e0...LPsS8Y5MVk

ffmpeg remux logs
https://privatebin.net/?0fb2d377a80ac993...1C46mGZddS
https://privatebin.net/?c5c1df2c5e1d787f...3zuweUL8Td
https://privatebin.net/?982e69342c8351db...4CXNpYvgs8

ffmpeg transcode logs
https://privatebin.net/?602274cb9cec00c1...VPV3tnWzqR
https://privatebin.net/?7ee0de2b7db8c097...PLbBHQBeYq

[TheDreadPirate]

From a transcode/remux perspective, everything is happening much faster than real time. Even 4K HDR tone mapping is happening at 5x real time.

The only thing that makes sense at this point is network performance. But even then, the closeness of the router tells me this shouldn't be a problem.

You mentioned the TV is WebOS. What model TV? Also, can you try using the WebOS browser to run a speed test?

https://librespeed.org/

[jeliozver]

~250 Mbps with the closest server (but still not a one in my country)
TV is LG C3 webOS24 / 9.2.1-2604
That's the thing if it was network performance i guess it would do this all the time, but in this case it only starts doing it on resuming episode.
After that test i watched 2 episodes that i had left on the same series with 0 freeze/lag.

I'm waiting for a Fire Stick delivery mainly for my old LG to "convert" it to a smart so i can use my server there, but i will surely give it a test on the current tv and check how it performs.