A warm welcome here in the Roku Community, @ldgorman.
We appreciate you reaching out for support about the issues you've encountered with the right and down buttons on your Roku remote and we'd be happy to suggest some troubleshooting steps to help you utilize this again.
Kindly reset your remote by pressing and holding the Back and Home buttons simultaneously for about 20 seconds. Pair it again to see if this will make any difference.
Let us know how it goes and we'll continue assisting you from there.
Best regards,
Carly
Carly Y.
Roku Community Moderator