Since I updated my atv 4K to tvOS 12, AirPlay isn’t anymore possible.
I am on the newest public beta of tvOS.
Mirroring or Airplay through YouTube app is working from my iPhone also on iOS 12.
Now I want to stream a movie with safari from my iPhone via AirPlay on my atv 4K.
But as soon as I select my atv on the iPhone the atv screen becomes black for a second and then gets back to the homescreen and so on.
I tried this with several devices also with iOS 11, no streaming via AirPlay.
Resetting the atv didn’t work.
Does anybody know this issue?
I am on the newest public beta of tvOS.
Mirroring or Airplay through YouTube app is working from my iPhone also on iOS 12.
Now I want to stream a movie with safari from my iPhone via AirPlay on my atv 4K.
But as soon as I select my atv on the iPhone the atv screen becomes black for a second and then gets back to the homescreen and so on.
I tried this with several devices also with iOS 11, no streaming via AirPlay.
Resetting the atv didn’t work.

Does anybody know this issue?