Inspector built-in navigation bar missed in iOS26

Could you provide a minimized code sample of how you're declaring this view? There are a couple ways to attach inspectors to a navigation split view.

The toolbar is attached as .modifier to the .inspector which is attached to the NavigationSplitView.

@andrew347

Are you able to share a code snippet you are working from? This way we can see exactly what you are seeing.

        NavigationSplitView() {
            // Sidebar column
            SidebarView()
                .environmentObject(navState)
                .navigationTitle(LocalizedStringKey("Xxxxxxxxxx"))
                .navigationBarTitleDisplayMode(.large)
                .toolbar {
                    ToolbarItemGroup(placement: .navigationBarLeading) {
                        AccountMenuView(
                            openSettings: openSettings,
                            sendEmail: { self.sendEmail(subject: $0) },
                            showProView: $showProView,
                            showStatisticsView: $showStatisticsView
                        )
                        if syncMonitor.isSyncing {
                            ProgressView()
                                .progressViewStyle(.circular)
                                .tint(.secondary)
                        }
                    }
                    
                    ToolbarItemGroup(placement: .navigationBarTrailing) {
                        OnboardingMenuView(
                            showWelcome: { showWelcomeView = true },
                            ...
                        )
                    }
                }
                .id(forceUpdate)
        } content: {
            // Middle column (Album Detail)
            NavigationStack(path: $navState.contentPath) {
                detailView
                    .navigationDestination(for: Album.self) { album in
                        AlbumDetailListView(item: album)
                            .environmentObject(navState)
                            .environmentObject(filterSettings)
                            .environmentObject(storeManager)
                    }
                    .navigationDestination(for: Folder.self) { folder in
                        HomeFolderView(folder: folder)
                            .environmentObject(navState)
                    }
            }
            .environment(\.sizeClass, sizeClass)
        } detail: {
            // Last column (Album/Card Detail)
            NavigationStack {
                if let album = navState.selectedAlbum {
                    AlbumDetailListView(item: album)
                        .environmentObject(navState)
                        .environmentObject(filterSettings)
                        .environmentObject(storeManager)
                } else if let flashcard = navState.selectedFlashcard {
                    CardDetailView(card: flashcard)
                        .environmentObject(navState)
                } else {
                    Text("Select an album")
                        .foregroundStyle(.secondary)
                }
            }
        }
        .tint(Color.ECS_Clr)
        .inspector(isPresented: $navState.isInspectorPresented) {
            if let card = navState.inspectorCard {
                CardInspectorView(
                    card: card,
                    isPresented: Binding(
                        get: { navState.inspectorCard },
                        set: { newValue in
                            if newValue == nil {
                                navState.closeInspector()
                            }
                        }
                    )
                )
                .inspectorColumnWidth(min: 350, ideal: 410, max: 500)
                .presentationDetents([.large, .medium], selection: .constant(.large))
                .presentationCornerRadius(28)
                .onKeyPress(.escape) {
                    navState.closeInspector()
                    return .handled
                }
            }
        }

    …
    
    var body: some View {
        CardInspectorListContent(
        …
            }
        }
        …
        .modifier(CardInspectorToolbarModifier(
            isEditMode: $isEditMode,
            isReorderingSections: $isReorderingSections,
            resetSectionsTrigger: $resetSectionsTrigger,
            isPresented: $isPresented,
            currentAlbum: currentAlbum,
            horizontalSizeClass: horizontalSizeClass,
            verticalSizeClass: verticalSizeClass,
            isCurrentOrderDefault: isCurrentOrderDefault,
            isTitleEmpty: isTitleEmpty,
            onEditTap: editTapHandler
        ))
       …
    }
}