Seems like @TeamYouTube is broken yet again. The mobile site isn't loading up correctly and it needs to be fixed. The same issue happened again 2 days ago and yesterday and now it's happening again...
Sorry for the confusion. We intend to ask if it's happening on your mobile app as well. Try clearing the browser cache and cookies to see if that helps. Also, please let us know if it's the same on an alternate browser on your phone. Keep us posted.