I know that my Apple ID password is correct, because I’ve used it several times in the past 2 days, including 1 hour ago. System Prefs informed me that I must sign in again to my Apple ID account - one result of upgrading this 12.9” Gen3 iPad to iPadOS 14.01. I’ve tried 5 or 6 times and each time it fails. “Unexpected error.” I have a robust internet connection. Might there be a bug-like issue with this aspect of iPadOS 14? Any ideas on what else to try? Thank you for your time!