I get similar behavior as y2kbyts.
While the answer above does let me log in, it will not update delivery information after the initial login. It shows the message "Error loading data!" and "Your password is incorrect" after refreshing a delivery. It seems like the one-time code expires then doesn't work anymore. Isn't the app supposed to have a separate prompt for our 2FA code instead of adding it to the end of the normal password? And how would a typical user even know to add it to the end? There's no information at all about how to log in with 2FA. It's a strange implementation.