I recently changed the password on my Google account. I logged in, reentered the old password to preserve my stateful, and ChromeOS has worked correctly.

Except that I've been getting notifications from Android to reauthenticate there as well. This is wrong on it's own.

Further, the Android system asks for my password, then prompts me for a gnubby for two factor authentication. It does not accept the USB gnubby, and instead dumps me into a screen to pair my bluetooth gnubby. Doubly wrong.