Last button on remote still not working for youtube app

Hello, I haven’t seen any response regarding a resolution for this issue still. I’ve tried using the down arrow function but that does not allow you to back out of the video without losing progress or losing the videos on the playlist. There is also no way to exit a video that plays an ad you may have selected by accident, the only way is to watch the entire ad or exit the app entirely.  Already tried resetting the app as well as the modem and stb, please advise with any solutions, no one seems to know what to do when you call support.