Can't Play MKV on Android

[NinjaWeenis]

I’m new to this so I’ll try to provide everything I can.
Windows server version 10.8.13
Android version 2.6.2
Trying to play MKV files and keep getting errors.
Says “source error” when using integrated player
When using webplayer it acts like it is playing by putting me in the player with the image of the show but it doesn’t play. Then it gives the error “Playback error This client isn’t compatible with the media and the server isn’t sending a compatible format”.
When using android’s video player it says failed to play video, unknown error
When using VLC it says no valid external player selected. Playback tracking is disabled. Pretty sure VLC could play the file if it was on my phone so this surprised me and makes me think I'm missing something big. I searched on the forum for a while and online and found that MKVs are a container so it might have something to do with a lot of my files using a format that Jellyfin doesn't like? I have handbrake if I need to convert files in some way but I would hope to keep the same resolution as I expect to play these files to a TV eventually.
 
https://privatebin.net/?4069037344ab0418...Gy9RmGvAuv

I'll try to jump on in the morning to reply and I've tried to make the forum spam my email so I know when people reply. And thank you for any help.

[Efficient_Good_5784]

Try renaming your folder for the episode you tried to play in that ffmpeg log.

D:\Video\TV Shows\Rick and Morty Season 1,2,3,4,5,6,7\Season 1

Remove the "season 1,2,3,4,5,6,7" part:
D:\Video\TV Shows\Rick and Morty\Season 1

Probably isn't causing your error though. Can you also provide your main server logs?

[NinjaWeenis]

What is the name of that log? and if applicable how do I strip out the list of my entire library?

[Efficient_Good_5784]

Dashboard > Logs > "log_YYYYMMDD.log"

The server loges are named after the date they're created on, so for today's log, you will need "log_20240901.log"

If you want to strip out items from the log, you'll need to use some other tool to find and replace all mentions of something.
You can do so with Windows Notepad. Just paste the logs into Notepad and use "ctrl + h+ to find and replace.