Sorry for late reply; got busy with other stuff. Running on a MBP 2018 with BigSur 11.2.1; GPU Intel UHD Graphics 630 1536 MB Will try to get the crashlog next time and file radar

When I read about reentry, I thought maybe try to put it into a dispatch on main in async block       let region = MKCoordinateRegion(center: visibleArea.coordinate,                                                 latitudinalMeters: 500, longitudinalMeters: 500)       mapView.mapType = .hybrid       DispatchQueue.main.async       {          mapView.setRegion(region, animated: true)       } It remove the violet warning message in Xcode 12.3 and also don't overload the console with redundant messages. Its a workaround and I hope that our dear Apple Dev find the real cause and a better fix

Get the same still on BigSur 11.1 on MBP using Xcode 12.3 ...

Have it also for macOS app using SwiftUI when just "looking around" through the map shown in the window.