Welcome @sanchio,
Note that watching live on 2 different TVs will not affect your viewing experience.
Is the stand-alone AMC+ app the only one not working? It still functions on the Live TV Guide, right?
In the meantime, try the following:
- Check the app for updates
> Highlight the app
> Press the star (*) button on your Roku remote
> Check for updates
- Restart the Roku device
Hope this helps.
Cheers,
Roku Community Team
Riamie D.
Roku Community Moderator