I am creating an universal application using Visual Studio Ultimate 2013 Version 12.0.30501.00 Update 2. I am getting Catastrophic failure on adding Map Control in my xaml l
I've tested your example and indeed there is such a problem also on my Phone.
As I have checked it is possible to set Collapsed
from code - so as a workaround:
In the code behind:
public MainPage()
{
this.InitializeComponent();
this.Loaded += (sender, e) => myMap.Visibility = Visibility.Collapsed;
}