I have found the issue . The cause is <View> and <BottomSheet> are react native components , not MapView overlays . on IOS , MapView accepts react subviews (and ignores unsupported once ) , but on android MapView is a native SurfaceView , which cannot have nested React views unless they're valid map overlays like <Marker> , <Circle> etc .

so to avoid this UI error on android simply do not put nested views inside the MapView . and by doing so my component mounts on android without an issue .