Please go here for all retail support questions: https://discussions.apple.com/welcome

I'm able to set the constraint via ctrl-drag - Xcode 13.2.1

Probably a recycled view, separator, extended nav bar, ... are you able to recreate the same behaviour in another sample project?

Are all certificates current?

This can be a starting point. Read: https://dl.acm.org/doi/fullHtml/10.1145/3453892.3462647 https://developer.apple.com/documentation/healthkit/data_types

What is the API question?

Just keep a branch for that client with their customizations.

Wrong forum!

Flutter is not an Apple product. All third party framework implementors shoud post all relevant questions to the respective support forums for those frameworks: Please goto https://github.com/flutter

Submit a bug report!

Google your question!

Don't overthink the architecture. You should not be using or depending on didSet. The documentation states then once an application delegate also conforms to the ObservableObject type it is automatically available to the entire SwiftUI Application because it places it into the Environment via the EnvironmentObject on your behalf. So move away from the swift didSet/willSet paradigm for property observations and move toward combine or publishers in the form of making the properties of interest into annotated @Published type. Then anywhere in your swiftUI code that needs access to some kind of data from the app delegate will automatically have it via the following pattern. @EnvironmentObject private var appDelegate: MyAppDelegate Read here: https://developer.apple.com/documentation/swiftui/uiapplicationdelegateadaptor

The following works without issue. struct ContentView: View {     enum ModelCategory: String, CaseIterable, Identifiable {         case one, two, three, four, five, six         var id: String {             self.rawValue         }     }     var body: some View {         VStack {             ForEach(ModelCategory.allCases, id: \.self) { value in                 Text(value.id)             }         }     } } But because you have introduced a member variable that is not initialized this is the error being raised. If you have a preview snippet, pass the showBrowse param into the ModelsByCategoryGrid(showBrowse: Binding.constant(false)) or give the showBrowse a default value.     @Binding var showBrowse: Bool

See the following Apple brief on Custom types and JSON: https://developer.apple.com/documentation/foundation/archives_and_serialization/using_json_with_custom_types

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