That's odd. Have you tried resetting your app? You can do that by going to Settings > scroll to your right and choose Reset App. Let us know if that clears things up.
Appreciate your efforts in trying to fix it. Please send a feedback report directly from YouTube: 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.