SwiftUI ObjectBinding in a UIViewRepresentable

uiviewrepresentable-objectbinding.swift

struct LotMapWrapperView: View {
    
    @EnvironmentObject var store: ParkingStore
    
    var body: some View {
        LotMapView(store: store)
    }
}

struct LotMapView: UIViewRepresentable {
    
    @ObjectBinding var store: ParkingStore

    func makeUIView(context: UIViewRepresentableContext<LotMapView>) -> MKMapView {
        MKMapView()
    }
    
    func updateUIView(_ view: MKMapView, context: UIViewRepresentableContext<LotMapView>) {
        // This is not getting called when store sends didChange :(
        print("Update view")
        print(store.parkingLots.count)
    }
}

I have had great issues trying to get updateUIView to call on binding changes on iOS14. The class RandomClass { } let x = RandomClass() hack works perfectly.