Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
This comes down to poor UX/UI design. A shame this passed QA.
The resolution: * For those being automatically authed to an expired subscription like me, you must first select the circle profile icon in the top menu (icon on farthest right) * Scroll all the way to the right option for "Sign out". Not at all obvious design
* Watch content, like The Flight Attendant
* You will be prompted to subscribe or sign in
* Select sign in and your preferred auth method (I chose hbomax.com/tvsignin)
Does not require app removal, reboots, etc. Just poor app design and poor user experience. Easily solved for by ALWAYS providing the user choice to sign out / change profiles.