When I have problems with WatchTCM I usually find it gets fixed if I log out of the app and log back in again to reauthenticate with my TV provider credentials.
Do this via Settings in the menu on the left side of the screen.
I've had to do this often enough that I have a link on my phone's home page to the TCM web page for entering the signin code.
Roku Community Streaming Expert
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X
