4K video file show no color, only black and white

Hi

I currently using Infuse pro with my 4K apple TV
sync with Video file from Plex server from my synology NAS

my problem is i download a bunch of 4K movie
some can play on my infuse just fine
but some show no color, only black and white
and when i try to play these file on my computer, the color show normally fine

so anything i missing or anything i should do?

Welcome to the forum!

Can you check the version of tvOS you are running in Settings > General > About? It sounds like you may be running an older version.