Hmm, could you try resetting the YouTube app on Roku: Go to Settings > Reset app. Also, here are a few more steps: https://goo.gl/a2MeiB . Hope this helps fix things.
@TeamYouTube the live YouTube for Roku sure has turned to crap. #blankscreen
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.