Using @Namespace in #Preview Xcode 15 gives an error message

Greetings...

I am trying to use @Namespace for my matchedGeometryEffect use case.

prior to Xcode 15 beta the following code worked just fine:

struct ChapterItem_Previews: PreviewProvider {
   @Namespace static var namespace
   
    static var previews: some View {
       ChapterItem(namespace: namespace, show: .constant(true))
    }
}

However trying to do the same within the new Xcode 15 beta #Preview Macro

#Preview {
    @Namespace var namespace
    ChapterItem(namespace: namespace, show: .constant(true))
}

produces the following error message:

Ambiguous use of 'Preview(_:traits:body:)'

May I kindly get assistance on the proper way I can get this to work in Xcode 15 beta? Please be as detail as you can since I'm still new to swiftUI as well Thank You.