JMP on Windows freezes on playing any media

[snow]

Hello everyone =)

My issue is that Jellyfin Media Player for Windows became all of the sudden the only platform where I can't read any file.
As soon as I press play, JMP freezes and I have to close it and reopen it to try and troubleshoot parameters to fix it, but with no success atm.

Here are the due required basic info, I guess, needed to help me and maybe others out 

Server : 
Docker image on Synology NAS (DS720+)
Version : 10.9.7 (latest )

Client :
Jellyfin Media Player for Windows (x64)
Version : 1.11.1 (latest)
Windows : 11 23H2 (22631.3810)

Already attempted solutions and logical conclusions to my understanding :

• Uninstalling JMP 1.11.1 and cleaning %AppData% jellyfin folders, reinstalling JMP 1.11.1 (maybe there are other folders that I should have deleted but I don't know them)
• Asking one other same server user if working on his PC (it does, but he's under 1.10.1, will check again if necessary with latest version)
• Tested the web version for playback (Chrome 126, works fine including AV1 files)
• Tested the Android Mobile version for playback (Android 2.6.1, works also fine including AV1 files)

My guess is that something went wrong on my PC install, but I'd rather avoid reformatting, so, here I am 

Thanks beforehand to any helper =)