Thanks for reaching out. Which device are you on? Also, could you try signing out and signing back in to see if it makes a difference? Let us know.
Hmm, to help the right team better investigate, please login to the account experiencing the issue & send a feedback report directly from YouTube: https://goo.gl/WdI0BK . You may not receive an individual response back, but the details will help us identify & fix any issues.