I have been using XCode Version 13.3 (13E113)for 3 months. Had no any problem about it but today when I tried to add navigation controller, I encountered the following situation (Picture 1).
When I try to arrange view, this happens. (Picture 2)
And when I try to delete navigation controller, Xcode is closed by itself. I was using this XCode until now and I added navigation controller many times. I do not know what happens. I deleted XCode and load again. But nothing changed.
Do you have any idea?