Try to Clean Build Folder, then Build your app again.

I also encountered this issue, and as suggested by @irhym, I resolved it by disabling the “Hide during application launch” option in the status bar preferences. In any case, I believe the problem is caused by a miscalculation by Auto Layout on devices without a notch. On iPad, the issue disappears by resizing the window, and even if I then return the app to full screen, the navigation bar is displayed correctly; if I restart the app, the problem occurs again.

I also encountered this issue, and as suggested by @irhym, I resolved it by disabling the “Hide during application launch” option in the status bar preferences. In any case, I believe the problem is caused by a miscalculation by Auto Layout on devices without a notch. On iPad, the issue disappears by resizing the window, and even if I then return the app to full screen, the navigation bar is displayed correctly; if I restart the app, the problem occurs again.