Playback always starts from beginning after resume, fast forward, or similar

[gatorz]

I'm new to Jellyfin and have seen similar issues posted online from a few years ago, but most of them conclude with the statement the bug should be fixed in newer versions. However, I'm still getting this issue for certain file types.

Whenever I resume, fast forward, or any other method to select playback position on my Roku the media always starts over from the beginning. It will play from beginning with no issues. I also have no issues when I access Jellyfin via Firefox on my windows computer. This only happens for certain file types.

Server Version: 10.8.13
Operating System: Windows
Architecture: X64

Roku Jellyfin Version: 2.0 build 5
Roku Streaming Stick 4K: 3820R2
Roku SW Version: 12.5.5 build 4174-E6

Problem file type:
Media file type: MKV
Encoding: H264
Video: AVC, 1920x1080, 25fps, Remux @ 4152 Kbps
Audio: AAC, 2ch, 48.0 KHz @ 124 Kbps

Thanks for your time.