Got locked out as well and had to reset my Apple ID too. PITA 2 hours spent dealing.I am uncertain if this is related to my iCloud account. I had a login issue started last night with (!) an exclamation mark on my iCloud, it boots me out of all iCloud services across all my devices. Not only that, but I panicked and reset my iCloud password and forced logout all my devices in the process.
It was a painful experience.