UWP地图控制地图图标旋转与地图，需要固定

UWP mapcontrol mapicon随地图旋转，需要固定。不知道如何修复它或任何解决方案。未旋转地图旋转地图

在

下面添加带有代码的图标

    private async void Add_cam(Geocoordinate Coordinate,GPoint point,string text,WriteableBitmap wb)
    {
        MapIcon icon = new MapIcon();
        InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
        await wb.RotateFree(point.angle).ToStream(ras, BitmapEncoder.PngEncoderId);
        var str = RandomAccessStreamReference.CreateFromStream(ras);
        icon.Image = str;
        icon.NormalizedAnchorPoint = new Point(0.5, 0.5);
        icon.Location = new Geopoint(new BasicGeoposition()
        {
            Altitude = Coordinate.Point.Position.Altitude,
            Longitude = point.x,
            Latitude = point.y
        });
        icon.Title = text;
        Map.MapElements.Add(icon);
    }