@TeamYouTube Begging- could you please help us out? https://support.google.com/youtube/thread/3140035?hl=en … - I deleted an empty channel in a account our agency manages over a day ago and it says still deleting data and won't let us log in. Few others are having the same issue.
Just to confirm, have you tried signing in from another device/browser? Also, try clearing your browser's cache & cookies to see if that fixes the issue. Keep us posted.