Hmm, does it happen to both desktop and mobile? Have you tried clearing cache and cookies with these steps: https://yt.be/help/Cko1 ? If you're using a mobile device, uninstalling and reinstalling the app usually does the trick. Let us know if that fixes it.
@TeamYouTube YouTube keeps signing out, and won’t let me sign in. What is the deal? 
-
-
-
I cleared cache ! Thank you
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.