SOLVED: DirectPlay freezing after skipping WebOS

[LodocArt]

Hello everyone! 

This is my first time spinning a jellyfin instance. It's running on a NAS with an Intel Core i5-12500. My main problem is HDR playback on my LG G2 TV, using the native Jellyfin app.

I'm playing a Joker file with these infos :
https://pastebin.com/T01rKztH
(it has more audio and subtitle tracks, however these aren't selected).

If I play the movie, I can pause, resume, and it works great in Direct Play
https://pastebin.com/AQJkHAGt

After skipping in the movie, ffmpeg keeps creating log file, the player just freezes and the movie never resumes. Here is an extract of the log file :
https://pastebin.com/fewPBzuJ

Here is an example of a ffpmeg log :
https://pastebin.com/WhUreXKd

Direct Streaming works great in my browser, and transcoding works on my Android phone (even though the logs and ffmpeg keep repeating).

For further infos, I've tried enabling and disabling "Prefer fMP4-HLS media container".
Here is my docker compose file :
https://pastebin.com/TRS5Jn19

Here is my transcoding settings on Jellyfin :
   


I'm lost with all the possible points of failures. I've followed jellyfin official guide on Intel GPU hardware acceleration, I've been using official docker image, I can't understand what is happening...

Thank you very much by advance! 😊