I face a similar issue here: https://developer.apple.com/forums/thread/695366. It's not exactly the same, but the behavior is similar enough that it looks like it's the same root issue. Seems like there's something wrong when NavigationView and TabView are used together in SwiftUI IOS 15 :(

The solution was to set an id field in the List: List(viewModel.details, id: /.self) { ... }

I think I am facing this same issue. But I am having trouble getting a dummy example that reproduces the error. Could you post a dummy example for people to reproduce? I tried with this example, and it works fine on iOS 15 :/ struct DetailView3: View {   var body: some View {     Text("Detail view 3")   } } struct DetailView2: View {   var body: some View {     NavigationLink(destination: DetailView3()) {       Text("Show detail view 3")     }.navigationBarTitle("Detail view 2")   } } struct DetailView: View {   var body: some View {     NavigationLink(destination: DetailView2()) {       Text("Show detail view 2")     }.navigationBarTitle("Detail view")   } } struct ContentView: View {   var body: some View {     NavigationView {       NavigationLink(destination: DetailView()) {         Text("Show detail view")       }.navigationBarTitle("Master view")     }   } }