Unable to Fast Foward direct play

[Psychic]

Specs

Truenas scale TrueNAS-SCALE-23.10.2
CPU 12700k
Ram 64gb

As the title says for some strange reason any video that is direct play on my web browser chrome, edge, I am unable to fast forward. it will play but fast forwarding is not possible. Direct play videos and shows are unable to play on my Firestick as well. Strangley enough i think its just HVEC direct playing files that arent playing on my firestick. IVe tried turning off all transcoding and there is still an issue. I'm just stuck.

[TheDreadPirate]

Is this for ALL videos or only particular videos? Are these problematic videos MKVs? If so, you can try recontainerizing the videos. Sometimes poorly authored MKVs can cause this issue. The command below will repackage all the video/audio/subs without re-encoding.

Code:

/usr/lib/jellyfin-ffmpeg/ffmpeg -fflags genpts -i "/path/to/video.mkv" -map 0:v -map 0:a -map 0:s -map_chapters 0 -c:v copy -c:a copy -c:s copy outputFile.mkv

Also, for Firesticks, you should explicitly select libVLC as the preferred player. For non-Firesticks I recommend exo.