NavigationLink pops out by itself

Number:rdar://FB9109857 Date Originated:18 May 2021
Status:Open Resolved:
Product:SwiftUI Product Version:
Classification:Incorrect/Unexpected Behavior Reproducible:Yes
Just pushed via NavigationLink view gets popped out.

Steps to reproduce:
1. Create SwiftUI iOS app with following implementation
import SwiftUI

struct PopBug1App: App {
    var body: some Scene {
        WindowGroup {

struct FirstView: View {
    var body: some View {
        NavigationView {
            NavigationLink(destination: SecondView()) {
                Text("Second view")

struct SecondView: View {
    @Environment(\.presentationMode) var presentationMode
    @StateObject var viewModel = SecondViewModel()

    var body: some View {
        VStack(spacing: 8) {
            NavigationLink(destination: Text("Details"), isActive: $viewModel.detailsVisible) {

            NavigationLink(destination: Text("About")) {

            Button("Details") {
                viewModel.detailsVisible = true

class SecondViewModel: ObservableObject {
    @Published var detailsVisible: Bool = false
2. Run the app
3. Navigate to second screen by tapping 'Second view' button
4. Tap on 'About' or 'Details' button

Observed behavior:
New screen gets pushed and immediately popped.

Expected behavior:
User stays on pushed screen

Believe issue was introduced in iOS 14.5, because I can’t reproduce it on previous versions.
Changing view hierarchy by adding another NavigationLink fixes the issue.

Xcode 12.5 (12E262)
iOS 14.5.1 (18E212)
macOS 11.2.3 (20D91)


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