FB24767077 After programmatically setting the ID to B, manually paging back to A causes the binding to update to A and then unexpectedly back to B. The view hangs between pages while SwiftUI attempts to animate toward the stale B target. The issue occurs only when an app built with Xcode 27 runs on iOS 27. It does not occur in: Xcode 27 build running on iOS 26 Xcode 26 build running on iOS 27 Xcode 26 build running on iOS 26 Steps to reproduce: Launch the minimal reproduction project Tap “Set B” to assign B directly to the scrollPosition(id:) binding Swipe right to return to page A Expected result: After paging from B back to A, the scroll position remains A once the pager settles. Actual result: The binding emits A followed by B, even though page A is the visible, settled page. The resulting stale B value causes the animation to hang between pages. Code: struct ContentView: View { @State private var selectedPage: Page? = .a var body: some View { VStack { HStack { Button("Set B") { selectedPage = .b } Text("Selected: \(selectedPage?.rawValue ?? "nil")") } PagerView(selectedPage: $selectedPage) } .onChange(of: selectedPage, initial: false) { _, newValue in print("selectedPage: \(newValue?.rawValue ?? "nil")") } } } struct PagerView: View { @Binding var selectedPage: Page? var body: some View { ScrollView(.horizontal) { LazyHStack(spacing: .zero) { ForEach(Page.allCases) { page in Text(page.rawValue) .font(.largeTitle) .frame(maxWidth: .infinity, maxHeight: .infinity) .background(page.color) .containerRelativeFrame(.horizontal) } } .scrollTargetLayout() } .frame(height: 300) .scrollIndicators(.hidden) .scrollPosition(id: $selectedPage) .scrollTargetBehavior(.paging) .animation(.default, value: selectedPage) } } enum Page: String, CaseIterable, Identifiable { case a = "A" case b = "B" case c = "C" var id: Self { self } var color: Color { switch self { case .a: .red.opacity(0.2) case .b: .green.opacity(0.2) case .c: .blue.opacity(0.2) } } }