I honestly have not been able to get this to work either. It would be nice to see a demo of it in action.

Same issue here. A partial solution is to add the sign in with apple button to a navigation view. But if you log out and pop back to the login screen, it seems to happen again.

Having the same issue with one of our own swift packages. Works fine on intel Macs. Does not work on apple silicon Macs.

I have this issue as well. Xcode 12.3 is completely unusable.

I actually ran into an example of UIApplication.shared.delegate being nil today. During the init of your app delegate, UIApplication.shared.delegate is nil. So if something needs to access the app delegate immediately after super.init() there's a possibility its still nil. For me, I populated my dependency root for dependency injection here. I added a line of code to one of my services that needed to access the app delegate and it was nil. Other than this, I can't think of any other possible times that it would be nil.

Some additional details: im using the iPhone 11 Pro max simulator