Just to confirm, have you taken a look at our help center article for more info: https://goo.gl/UYQCBF ? Also, try uninstalling and reinstalling the app to see if that makes a difference. Keep us posted.
Thanks for the info. Please send a feedback report directly from YouTube with these steps: https://goo.gl/WdI0BK . While every individual report may not get a direct response, we do review everything and use the details to investigate and fix issues.