I have been using my AppleTV 4K just fine with my 48” LG OLED and set to Dolby Vision. Everything was fine until I decided to run all my cables through the wall. I bought new 8K cables. And now I’m having so many problems unless I set the AppleTV to 1080 SDR. I get the black screen and the stream pauses. I have tried changing so many settings and combinations on the TV and the AppleTV. I’ve changed inputs on the TV.

I hate having to thread the old cable through the wall, but I guess that’s my next step.

Could the 8K cable be causing the problem?