On the Xbox Apple TV App (using on an Xbox Series X), if you fast forward while watching a replay of a live event, for me it is Formula 1 Bahrain Qualifying in Sepang, the entire broadcast devolves into what I can only describe as a rainbow explosion.
I have a picture attached. You cannot reset it even after restarting the app from the Xbox, rewinding to the beginning, changing streams or videos, launching another app and re-opening Apple TV, etc.