Hello. I’ve encountered a strange issue with TimelineView and wanted to report it. The following code runs without any problems: // Example 1. struct ContentView: View { var body: some View { TimelineView(.everyMinute) { _ in List { TimelineView(.everyMinute) { _ in Text("Hello") } } } } } However, the code below causes the CPU usage to spike to 100%, and the screen displays a blank view: // Example 2. struct ContentView: View { var body: some View { TimelineView(.everyMinute) { _ in List { TimelineView(.everyMinute) { _ in text } } } } var text: some View { Text("Hello") } } The same issue occurs with the following code: // Example 3. struct MyTextView: View { var body: some View { Text("Hello") } } struct ContentView: View { var body: some View { TimelineView(.everyMinute) { _ in List { TimelineView(.everyMinute) { _ in MyTextView() } } } } } Replacing List with LazyVStack and ForEach resolves the hang issue, but I need to use List because I rely on the swipeActions(). Does anyone have insights or suggestions on how to address this issue?

To apply custom transition animations, I implemented a UIViewControllerRepresentable wrapping UINavigationController instead of using NavigationStack. The navigation stack pops correctly with DismissAction. However, when I call DismissAction after presenting my CustomNavigationStack with fullScreenCover(isPresented:onDismiss:content:), it doesn't work. I suspect that the DismissAction implementation does not handle this case. Is there a workaround for this? Below is a simple reproduction code: struct ChildView: View { @Environment(\.dismiss) private var dismiss var body: some View { Button { dismiss() } label: { Text(verbatim: "Dismiss!!") .background(Color.yellow) } } } struct CustomSimpleVC: UIViewControllerRepresentable { func makeUIViewController(context: Context) -> UIHostingController<ChildView> { let vc = UIHostingController(rootView: ChildView()) vc.view.backgroundColor = .green return vc } func updateUIViewController(_ uiViewController: UIHostingController<ChildView>, context: Context) {} } struct CustomContainerVC: UIViewControllerRepresentable { func makeUIViewController(context: Context) -> UIViewController { let childVC = UIHostingController(rootView: ChildView()) childVC.view.backgroundColor = .blue let vc = UIViewController() vc.addChild(childVC) vc.view.addSubview(childVC.view) childVC.view.frame = vc.view.bounds childVC.view.autoresizingMask = [.flexibleWidth, .flexibleHeight] childVC.didMove(toParent: vc) return vc } func updateUIViewController(_ uiViewController: UIViewController, context: Context) {} } struct CustomNavigationVC: UIViewControllerRepresentable { func makeUIViewController(context: Context) -> UINavigationController { let childVC = UIHostingController(rootView: ChildView()) childVC.view.backgroundColor = .red let childVC2 = UIHostingController(rootView: ChildView()) childVC2.view.backgroundColor = .gray let navVC = UINavigationController() navVC.viewControllers = [childVC, childVC2] return navVC } func updateUIViewController(_ uiViewController: UINavigationController, context: Context) {} } struct ContentView: View { @State private var isNextPresented: Bool = false var body: some View { VStack { Button { isNextPresented = true } label: { Text(verbatim: "present") } } .fullScreenCover(isPresented: $isNextPresented, content: { VStack { CustomSimpleVC() // Works CustomContainerVC() // Works CustomNavigationVC() // Does not work } }) } } #Preview { ContentView() }

It seems that Xcode gets confused when there is another format specifier before a plural variable. As shown in the screenshot, %#@VARIABLE@ %f works fine, but an error occurs with %f %#@VARIABLE@.