I am not able to login at all either. I do have Hive Keychain. I put in username, click login, nothing. Please help, thanks.
Disregard for now: At first Hive Keychain did not ask. I put in a bogus username, then Hive Keychain errored (as expected). Then, I put in correct username, then Hive Keychain asked for authorization.
Bug or not: I don't know.... just FYI