An unspecified error occurred on the render thread. (NotifyPartitionIsZombie)

Question

OK here's the problem, I have a ContentControl3D object from thriple in that im creating a LibraryStack with images it runs fine, until i run the function where the LibraryStack gets created and filled. when i click on any of the objects inside i get the following error

An unspecified error occurred on the render thread.

with stacktrace

at System.Windows.Media.MediaContext.NotifyPartitionIsZombie(Int32 failureCode)
at System.Windows.Media.MediaContext.NotifyChannelMessage()
at System.Windows.Interop.HwndTarget.HandleMessage(Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at WelkoMap.App.Main() in F:\MediaGarde\Surface\Development\WelkoMap\WelkoMap\obj\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

here's the code that adds and creates the LibraryStack and fills it

public void ReplaceBackContent(List<Image> images, List<MediaElement> videos)
{
    ContentControl3D control = this.TryFindParent<ContentControl3D>();
    if (control == null)
    {
        return;
    }
    LibraryStack stack = new LibraryStack();

    foreach (Image image in images)
    {
        if (image.Parent != null)
        {
            continue;
        }
        LibraryStackItem item = new LibraryStackItem();
        item.Content = image;
        stack.Items.Add(item);

    }
    control.BackContent = stack;
}

Since it has the NotifyPartitionIsZombie error i already installed windows update KB967634 which had absolutely no effect at all