We discovered one or more bugs in your app.  Specifically, an error is still shown when trying to log in with Sign in with Apple.  Please review the details below and complete the next steps.  Review device details: Device type: iPad and iPhone  OS version: iOS 15.1.0 Next Steps Please run your app on a device to reproduce the issues, then revise and submit your app for review. If at first you're unable to reproduce the issue, try the following:  For new apps, uninstall all previous versions of your app from a device, then install and follow the steps to reproduce.  For app updates, install the new version as an update to the previous version, then follow the steps to reproduce. If we misunderstood the intended behavior of your app, please reply to this message in Resolution Center to provide information on how these features were intended to work. Resources For information about testing apps and preparing them for review, see Technical Note TN2431: App Testing Guide. To learn about troubleshooting networking issues, see About Networking. We tried both scenarios (app update and fresh install) to reproduce the issue on iPadOS 15.1. This was tried on TestFlight build but it was working as expected. Login was success everytime. The implementation is done purely using AuthenticationService. To create request - ASAuthorizationAppleIDProvider().createRequest() To perform request - ASAuthorizationController Somehow app gets rejected everytime. Is there any way to reproduce this issue? How can we debug such issues?