I am seeing the same thing. App that works fine on 17.5 is quite broken on 18. I also notice that after navigating back and forth a few times the whole navigation stack seems corrupted. Old views that you have previously popped re-appear in the wrong context in the navigation stack, and views are not completely drawn

I can confirm that everything works correct when using the NavigationStack outside a TabView. Inside a TabView, even if there is only a single tab, exhibits incorrect behaviour

Only tried on my iPad as yet, and it does seem to be fixed in beta 5

This is a content view for a test app that had the issue pre-beta 5, but works fine on my iPad with beta 5 import SwiftUI class Item: Identifiable, Hashable { var name: String init(name: String) { self.name = name } static func == (lhs: Item, rhs: Item) -> Bool { lhs.name == rhs.name } func hash(into hasher: inout Hasher) { hasher.combine(name) } } class Model: ObservableObject { @Published var path = [Item]() } struct ContentView: View { var items = [ Item(name: "Item 1"), Item(name: "Item 2"), Item(name: "Item 3"), ] @StateObject private var model = Model() var body: some View { TabView { Text("Go to Tab 2") .tabItem { Label("Tab 1", systemImage: "storefront") } .tag("1") tab2() .tabItem { Label("Tab 2", systemImage: "globe") } .tag("2") } } @ViewBuilder func tab2() -> some View { NavigationStack(path: $model.path) { List(items) { item in NavigationLink(item.name, value: item) } .navigationDestination(for: Item.self) { item in DetailView(item: item) } } } } struct DetailView: View { var item: Item var body: some View { Text("Details...\(item.name)") } } #Preview { ContentView() }

@ulian_onua I spoke too soon, and the issue does still occur, just much less frequently than before. While most of the time I no longer see the double-push of views, in some situations the exact same code will do a double-push. I don't know what makes those situations different than the situations where it doesn't happen. So, in short, the issue is NOT fixed in iOS 18.1 beta 2

I was using a NavigationPath (this is in my real app, not in my test code), and found that removing that fixed all my issues. My use is pretty simple and I don't need to use a path with the NavigationStack