AppleTV Login Screen Missing

Launched Zwift on AppleTV and there is no login screen- just background image of London course and music playing.

Zwift is reporting all systems are operational but I’m not experiencing issues with any other app nor with with my Internet connection. 

Hi, I also use Apple TV(4K) and without suffered this problem. Maybe you can try re-install the program. 

I just experienced the same issue today and found a solution for me. Just to add it here for future visitors.

I simply restarted (not only sleep mode/wakeup) my AppleTV. It took a while to remember this option because normally, I just bring it to sleep mode.