Thanks Yvan for the detailed steps. Unfortunately, we were unable to reproduce the error that you are facing. Are you are passing the result of the authentication Activity back to the button? Here is an example:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Pass the activity result to the saveSession button.
loginButton.onActivityResult(requestCode, resultCode, data);
}
More info on Twitter auth can be found here:
https://docs.fabric.io/android/twitter/authentication.html#log-in-with-twitter
If you are still having trouble, please share snippet of your app code to help us debug. Thanks.