CognitoUserConfirmationNecessaryException Error on every first login attempt

[niklaslrks]

I am currently facing the issue, that my first login attempt will always result in a CognitoUserConfirmationNecessaryException (although the User is 100% Confirmed). The second login attempt immediately after will work completely fine and no Exception will occure. I have tested this with multiple Users and is always the same. I tried debugging but couldn't really get a hold of what goes wrong and the only thing I could work out was that it fails in these lines (cognito_user.dart):

Is there any information I can provide for you to help me out? Thanks!