Hello, I have also been experiencing the same issue when trying to implement a section index for a List in SwiftUI. Please see below for a simple example from a test project (created with the default Xcode 16 build settings, no other changes) that reproduces the same issue outlined by the OP. import SwiftUI struct ContentView: View { let sections: [String] = ["#", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"] var body: some View { ScrollViewReader { proxy in ZStack { List { ForEach(sections, id: \.self) { section in Section(section) { ForEach(0...25, id: \.self) { _ in Text("Hello, \(section)!") } } } } .listStyle(.plain) .padding(.trailing) HStack { Spacer() SectionIndexTitles(proxy: proxy, titles: sections) } } } .scrollIndicators(.never) } } struct SectionIndexTitles: View { let proxy: ScrollViewProxy let titles: [String] @GestureState private var dragLocation: CGPoint = .zero var body: some View { VStack { ForEach(titles, id: \.self) { title in Text(title) .font(.footnote) .fontWeight(.semibold) .background(dragObserver(title: title)) } } .padding(.horizontal, 2.5) .gesture(DragGesture(minimumDistance: 0, coordinateSpace: .global).updating($dragLocation, body: { value, state, _ in state = value.location })) } func dragObserver(title: String) -> some View { GeometryReader { geometry in dragObserver(geometry: geometry, title: title) } } func dragObserver(geometry: GeometryProxy, title: String) -> some View { if geometry.frame(in: .global).contains(dragLocation) { DispatchQueue.main.async { proxy.scrollTo(title, anchor: .top) } } return Rectangle().fill(Color.clear) } } Thank you, Alex