EDIT: You know, after some time to cool off, Google Authenticator 2FA can still be enabled and isn’t being phased out like the less secure SMS 2FA, so it’s really not the end of the world here. The chance of permanent lockout is avoided, even if the whole Google Prompt system is still wack.
something similar happened to me too, account that didnt have 2fa enabled at all suddenly asking for confirmation on a device i just wiped
it sorted itself after a couple of hours, maybe a bug