SwiftUI - SF Symbols not rendering in tabItemLabel

I can get SF Symbols to work fine in main body views.

This works:

struct ContentView : View {

    var body: some View {
        VStack {
            Text("Hello world")
            Image(systemName: "square.and.pencil")
        }
    }
}

But this does not - the tab item is empty

struct ContentView : View {
    @State private var selection = 0

    var body: some View {
        TabbedView(selection: $selection){
            Text("Hello world")
                .tabItemLabel(
                    Image(systemName: "square.and.pencil")
                )
                .tag(0)
        }
    }
}

Is this a known issue?