Hey there, have you tried using a different browser or a device? Also, clear your browser's cache and cookies to see if it makes a difference: https://goo.gl/dyF625 . Hope this helps.
Appreciate your efforts. Could you 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 back, we do review everything to investigate and fix issues. Thanks!