scrollTo is not work in swiftUI Navigation

It works well, if it is the first view when the app start. Else, it doesn't work well within Navigation. why?? I have no clues.

struct TestView: View { @StateObject var viewModel = TestViewModel1() @State var data : [String] = ["one", "two", "three", "four", "five", "one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "five","one", "two", "three", "four", "bottom most" ]

@State var scrollToId = "hi"
var body: some View {
    ScrollViewReader { proxy in
        List{
            ForEach(0..<data.count, id : \.self){ index in
                Text(data[index])
                    .frame(minWidth : 0, maxWidth : .infinity)
            }
            
            Text("")
                .frame(minHeight : 0, maxHeight: 0)
                .id(self.scrollToId)
        }
        .onAppear{
            proxy.scrollTo(self.scrollToId)
        }
    }
}

}

With navigation, "scrollTo" doesn't work

Without navigation, it works well