New Post: PropertyGrid error when opening collection

As soon as I click the "(Collection)" button to open a CollectionControlDialog, it will throw an exception.
It appears to be caused by having a List property inside of another List property.

Here is some code which will always throw a System.NullReferenceException.
If you initialise MyStringList via the constructor, it will throw a System.Reflection.TargetParameterCountException instead.
Removing the MyStringList property will stop all exceptions.

public MainWindow()
{
    InitializeComponent();
    PropertyGrid.SelectedObject = new MyContainerClass();
}
public class MyContainerClass
{
    public MyContainerClass()
    {
        MyClassList = new List<MyClass>();
        MyClassList.Add(new MyClass());
    }
    public List<MyClass> MyClassList { get; set; }
}
public class MyClass
{
    public List<string> MyStringList { get; set; }
}

The XAML for "PropertyGrid" is simply

<xctk:PropertyGrid x:Name="PropertyGrid" />

My Windows build version is 10586.420.