We are getting a 'System.Windows.FrameworkContentElement' is not a Visual or Visual3D exception in our application.  The application has an XamRibbon, a XamDataChart.  The chart is inside of an XamDocPanel.

It is thrown when we drag the panel containing the graph and release the left mouse button. 

Is there a fix for this?  We are using InfragisticsWPF4.Controls.Charts.XamDataChart version 11.2.20112.2076.

There is four year old bug 6846 mentioned from 2008 for this exception in this forum post: http://es.infragistics.com/community/forums/t/12738.aspx

Here are the Infragistics calls in the exception call stack.  There is no inner exception.  The full call stack of 75+ calls is also included.

 at Infragistics.Windows.Ribbon.GalleryToolDropDownPresenter.OnLostKeyboardFocus(KeyboardFocusChangedEventArgs e)
...many internal Microsfoft calls on the stack
at Infragistics.Windows.Ribbon.XamRibbon.TransferFocusOutOfRibbon()
   at Infragistics.Windows.Ribbon.GalleryTool.OnItemClicked(GalleryItem galleryItem, GalleryItemGroup galleryItemGroup, GalleryItemPresenter presenter)   
at Infragistics.Windows.Ribbon.GalleryItemPresenter.SelectOrClickItem()   
at Infragistics.Windows.Ribbon.GalleryItemPresenter.OnMouseLeftButtonUp(MouseButtonEventArgs e)

   at MS.Internal.Media.VisualTreeUtils.AsVisual(DependencyObject element, Visual& visual, Visual3D& visual3D)    at MS.Internal.Media.VisualTreeUtils.AsNonNullVisual(DependencyObject element, Visual& visual, Visual3D& visual3D)    at System.Windows.Media.Visual.IsAncestorOf(DependencyObject descendant) at Infragistics.Windows.Ribbon.GalleryToolDropDownPresenter.OnLostKeyboardFocus(KeyboardFocusChangedEventArgs e)    at System.Windows.UIElement.OnLostKeyboardFocusThunk(Object sender, KeyboardFocusChangedEventArgs e)    at System.Windows.Input.KeyboardFocusChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)    at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)    at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)    at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)    at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)    at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)    at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)    at System.Windows.Input.InputManager.ProcessStagingArea()    at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)    at System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp)    at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)    at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)    at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)    at System.Windows.ContentElement.Focus()    at System.Windows.FrameworkElement.OnPreviewGotKeyboardFocus(Object sender, KeyboardFocusChangedEventArgs e)    at System.Windows.Input.KeyboardFocusChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)    at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)    at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)    at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)    at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)    at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)    at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)    at System.Windows.Input.InputManager.ProcessStagingArea()    at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)    at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)    at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)    at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)    at System.Windows.Input.Keyboard.Focus(IInputElement element) at Infragistics.Windows.Ribbon.XamRibbon.TransferFocusOutOfRibbon() at Infragistics.Windows.Ribbon.GalleryTool.OnItemClicked(GalleryItem galleryItem, GalleryItemGroup galleryItemGroup, GalleryItemPresenter presenter) at Infragistics.Windows.Ribbon.GalleryItemPresenter.SelectOrClickItem() at Infragistics.Windows.Ribbon.GalleryItemPresenter.OnMouseLeftButtonUp(MouseButtonEventArgs e)    at System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)    at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)    at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)    at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)    at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)    at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)    at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)    at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)    at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)    at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)    at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)    at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)    at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)    at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)    at System.Windows.Input.InputManager.ProcessStagingArea()    at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)    at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)    at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)    at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)    at System.Windows.Interop.HwndSource.InputFilterMessage(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, Int32 numArgs)    at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)    at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)    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.Application.RunDispatcher(Object ignore)    at System.Windows.Application.RunInternal(Window window)    at System.Windows.Application.Run(Window window)    at System.Windows.Application.Run()    ...