Exception-saving-a-compiled-strategy

As exceptions in WL7 became more rare event, I’ll report this one. Something with compiled strategies or meta strategies. I do not know what exactly caused this, so what I did:
The were a couple of windows with compiled strategies and a window with meta strategy with those strategies added there. The exception occurred when I pushed Save or Ok button when I was asked to save or not. It was about meta strategy or compiled one.


System.NullReferenceException: Object reference not set to an instance of an object.
at (Object )
at WealthLab7.designerCompiled.UpdateUIFromStrategy()
at WealthLab7.cwStrategy.FillWrapper(Object reference, RoutedEventArgs visitor)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
at MS.Internal.LoadedOrUnloadedOperation.DoWork()
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)