Hi npvisual, thanks so much for the question! Could you please file a feedback assistant issue for this, and please comment back here with the FB number so we can get it in front of our Simulator team? Please attach the app you're running, and also please attach the output of sudo sysdiagnose as well as xcrun simctl diagnose. It would be best to run the app, try to sign in, let it get into the failure state, and then run these diagnose commands before attaching them to the feedback assistant issue. That way, we should have a better chance of seeing what might be going wrong. Thank you!!