SwiftUI Picker on iPadOS 15 beta 8

For anyone else running into this, it's not hard to convert from a Picker with MenuPickerStyle to a Menu. I went ahead and converted the above to demonstrate:

struct OuterView: View {
    @State var colorViewModel = ColorViewModel()

    var body: some View {
        ColorView(colorViewModel: colorViewModel)
    }
}

class ColorViewModel: ObservableObject {
    @Published var colors = ["yellow", "green", "blue"]
    @Published var selectedColor = "Select a color"
}

struct ColorView: View {
    @ObservedObject var colorViewModel: ColorViewModel

    var body: some View {
        VStack {
            Menu {
                ForEach(colorViewModel.colors, id: \.self) { color in
                    Button(color) {
                        colorViewModel.selectedColor = color
                    }
                }
            } label: { Text(colorViewModel.selectedColor)
                .frame(maxWidth: .infinity, alignment: .leading)
                .padding()
            }
            .border(Color.black, width: 2)

            Text(colorViewModel.selectedColor)
        }
        .padding()
    }
}

struct ColorView_Previews: PreviewProvider {
    static var previews: some View {
        OuterView()
    }
}

I'm having the same issue but with iOS 15. The label of the Picker simply doesnt work as expected in iOS 14.X

I already tried many things but nothing seems to work.

                Picker(selection: $selectedValue, label: formFieldDropdown,
                       content: {
                    ForEach(dataSource) {
                        Text($0.displayName)
                    }
                })
                    .pickerStyle(MenuPickerStyle())

iOS 14.X

iOS 15

A scrolling Picker which displays just fine in 14.5 is just showing as a fixed text which the current selection. The actual picker does not show at all.

                Picker(“MyPicker”, selection: self.$viewModel.selection, content: {

                    ForEach(…)

                    })

                })

We need an immediate fix. Any hints or links appreciated. We will try the 15.1 beta to see whether this has been fixed. UPDATE: problem persists in 15.1.

Additional question: How could we have avoided this problem? Did we miss something in the documentation?