[WinRT] Crash when navigating to a page with ToolbarItems

[lploumen]

Hi,
Thank you for this control !
When navigating to a page which contains a Map and some ToolbarItems, it crashes with an UnhandledException. I could not get the Stacktrace, only the error message which is : "Catastrophic Failure".
When removing the ToolbarItems, it works the first time. Next time I open the page , there's an exception here :

  private void Control_LoadingStatusChanged(MapControl sender, object args)
        {
            controlReadyForMoveUpdates = Control.LoadingStatus == MapLoadingStatus.Loaded;
        }

With Control being null.

Any idea what might cause this problem ?
I uploaded the MapTest project in case anyone whats to reproduce the problem!
Thank you!
MapsTest.zip