You Guys are true gem! I made account on forum just to reply you guys. I had the same problem except I could not play .MKV files on my local servers. All I did was Strip ACL permission to my config and transcode data set (Yes I kept separate dataset for transcode) and it came to default Read, Write Execute permission to user and Group. And it Worked!
Now I need your help to setup my server outside my home network.
Trunas version - ElectricEel-24.10.0.2