An error occurred loading this content

Some video’s show " “an error occurred - an error occurred loading this content”
Most play fine.
On the source volume,a Sinology NAS, they all play fine.
This issue happens on my Mac and on my AppleTV4

MacBook Pro, Ventura 13.3.1

Hey dude.

Will need some more information regarding the files themselves, the admins here tend to let you upload content so they can test but would be interesting to see the Media Info of the problematic files, you can get the program from: MediaInfo - Download

Just drag your video file into the software and maybe post the text output?