I’ve experienced this problem two days in a row. While watching a CBS Morning news recording on my Apple TV, the playback stops. The scroll bar at the bottom of the screen is locked and I can’t advance or backup. If I exit the program and launch it again, it plays for a second or two and locks up again.
I have unplugged and replugged the Tablo and have restored Apple TV.
I have App 1.11.2 and tvOS 15.