For those having issues with Asana and setting up 2factor, if you signed in normally using your google account you need to hit “Forgot My Password” when logging in, and create a new one to get it working. (Requires password entry when setting it up) As asana does not just use your google password, it uses an auth token through the google api for authentication.
This should really be included into the new 2factor documentation page so people aren’t getting lost. We had a few team members running into the same issue 