RMP doesn't really contribute to the Roku's main function, which is to stream input coming in over the internet. It's pretty much become an orphan that hasn't received any attention or development in several years.
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.
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Ultra 4850 | Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X