@garysmckiernan You are the MAN. I have been stuck on iOS 18.2 sim for over 6 months. Tried everything including upgrading to Tahoe, and next step would have been reinstalling macOS. How did you know to delete the Xcode defaults preferences? How were you able to diagnose and come up with this fix? I couldn't figure out how to diagnose it or locations to reset to try and fix it.