So I'm using my Mac, and randomly, it just pops up saying I need to sign into iMessage, FaceTime and iCloud account. Kind of like if you suddenly changed password (not possible - have 2-factor, and the password wasn't changed), or I had signed out (strangely, iCloud remain signed in, even though I chose to cancel the prompts - iMessage and Facetime just signed out). Does this happen sometimes? HAs this happened to anyone else? Like maybe the Mac read the keychain wrong for a brief moment and decided to just log out?