2024-06-21, 01:08 PM
I have found the cause of issue. Looks like Yunohost package that combined both Jellyfin (Server&Client) and ffmpeg has mismatched versions - ffmpeg was to new for packaged Jellyfin server (ffmpeg6 is for Jellyfin 10.9, not 10.8, and package came with Jellyfin v10.. I have installed Jellfyin 10.9 with ffmpeg6 from another repository and it is working.
Thank you all for help
Thank you all for help