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I have made a simple program, containing two standard views (Hello world!), and put both of them into a TabView in ContentView. I upload the simple test app to my devices: iPhone 6s, iPhone X and iPad Air 2. By pressing the different tab views in the bottom menu bar, everything works fine. I then upload the app to my iPad Pro 12.9" 512Gb 2020. Its starts normal, viewing the View1. I then switch to the view2 by pressing the tab view for view2 and get tis message: "TestSimpleView[5022:2020784] [TraitCollection] Class CKBrowserSwitcherViewController overrides the -traitCollection getter, which is not supported. If you're trying to override traits, you must use the appropriate API." The iPad Pro then freezes.... My iPad Pro can NOT handle tabViews! Why? Please, need help...