Thanks for the update about your playback issue with Paramount+.
If the issue still persists after following all the troubleshooting steps and the issue is only with the channel alone, this is a good indication that there likely an issue within that specific channel that will need to be addressed with an update from the channel publisher. Channels on Roku are created and maintained by each channel publisher. In this case, you'll want to reach out to that channel publisher directly to share your feedback.
I have two TCL Roku TVs. Both started having this problem yesterday, April 27, 2021. Previously, both worked great with Paramount+.
When I launch Paramount+, it seems to load normally. I first see the splash screen. Then I'm asked, "Who's Watching?" and I'm presented with our two profiles and the Add Profile setting. I select the usual profile. Then the main screen loads with the menu on the left and the various categories and tiles of available videos to watch. I select a video, I get the welcome screen for that particular show. But when I then try to play the video, it seems to start loading, but then the the channel crashes and I'm sent back to the Roku Home screen.
Anyone else having this problem? Any idea how to fix it? I've powered off the TVs, removed and reloaded the Paramount+ channel, and I have the same problem. I can watch shows online at ParamountPlus.com. Thank you.
When you remove the channel, BEFORE reinstalling it, be sure to restart your Roku to clear its memory and assure you get a clean reinstall.
Restart via Settings > System > System restart. If a Roku TV, Settings > System > Power > System restart.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well. If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X