Hi, @Mike82.
A warm welcome to the Roku Community!
We see that you're having issues with your Roku Mobile App's remote feature. We are glad to take a closer look at it.
What troubleshooting steps have you tried so far? If you haven't done any, you may try to Uninstall and then Reinstall the app to see if it makes any difference.
Please ensure that you have downloaded the Official Roku App and have it installed on your device.
Let us know how this works.
All the best,
Emman
Emmanuel-D.
Roku Community Moderator