Map Inside VStack Causing Crash - swiftui

Question

I have a simple Map view:
struct MapContainer: View {
#EnvironmentObject var store: AppStore
#State private var region: MKCoordinateRegion = Location.defaultRegion
var events: [Event] {
store.state.getEventsFromSearchResults()
}
func select(id: UUID) {}
var body: some View {
Map(
coordinateRegion: $region,
interactionModes: .all,
showsUserLocation: true,
annotationItems: events,
annotationContent: { event in
MapAnnotation(coordinate: event.coordinates) {
Image("MapMarker")
.resizable()
.scaledToFit()
.frame(width: 24)
.foregroundColor(
event.id == store.state.searchState.tapped
? Color("Accent")
: .black
)
.onTapGesture { select(id: event.id) }
}
}
)
.frame(maxWidth: .infinity, maxHeight: .infinity)
.onAppear { region = store.state.searchState.near.region }
}
}
And I have a screen that uses the above container:
struct MapScreen: View {
let height: CGFloat? = nil
var body: some View {
GeometryReader { geo2 in
ZStack(alignment: .top) {
VStack {
MapContainer()
.animation(.easeOut)
}
.frame(height: height != nil ? height : geo2.size.height / 2 + geo2.safeAreaInsets.top)
VStack(spacing: 0) {
VStack(spacing: 0) {
HStack {
Image(systemName: "minus")
.font(.system(size: 40))
.foregroundColor(Color("LightGray"))
.padding(.vertical, 10)
}
.frame(maxWidth: .infinity)
.contentShape(Rectangle())
MapList()
}
.frame(height: 500)
.background(Color.white.shadow(color: .gray, radius: 5, x: 0, y: 3))
}
.frame(maxHeight: .infinity, alignment: .bottom)
.animation(.easeOut)
}
.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .bottom)
.edgesIgnoringSafeArea(.vertical)
}
}
}
The above crashes with - Thread 1: EXC_BAD_ACCESS (code=1, address=0x38) - but if I assign a hard coded value to the MapContainer e.g.
MapContainer().frame(height: 400)
Then everything works fine. Anyone know what's causing the issue?