The solution is changing newLivingAccommodation.trip = trip to trip.livingAccommodation = newLivingAccommodation. After one year, Apple haven’t change this in their sample code.

on Xcode15 beta4, all workarounds above don’t work for me. I notice that release notes mentioned that it is a known issue and recommend to run on device replacing preview, but it is not convenient. is there any other workaround?

I updated to iOS beta3 and Xcode15 beta3, the problem has solved.

I have the same problem with my iPhone, but everything is ok on my iPad Pro, both are in the beta version OS, and in the same network. how strange!

I also had that problem, this is the solution: add @Bindable var viewModel = viewModel in your view’s body, even though I don’t think it is elegant. @Observable final class View1Model { var text: String = "" } struct View1: View { @State var viewModel = View1Model() var body: some View { View2() .environment(viewModel) } } struct View2: View { @Environment(View1Model.self) var viewModel var body: some View { // use @Bindable to get the binding @Bindable var viewModel = viewModel TextField("Text", text: $viewModel.text) } }