When recording WPF test selecting a step may cause the following unhandled exception (available in the application log):

[09-26 09:31:34,Telerik.TestStudio.exe(3096:1),Error] App.LogUnhandledException() : EXCEPTION! (see below)
     Situation: Unhandled exception!
     Outer Exception Type: System.NullReferenceException
     Message: Object reference not set to an instance of an object.
     HRESULT: 0x80004003 (Official ID (if app.) = E_POINTER, Error Bit = FAILED, Facility = FACILITY_NULL, Code = 16387)
     Call Stack:
          at Telerik.Windows.Controls.Data.PropertyGrid.AutoBindBehavior.DetermineBinding(PropertyGridField field)
          at Telerik.Windows.Controls.Data.PropertyGrid.AutoBindBehavior.<>c__DisplayClass3.<OnUpdateBindingOnElementLoaded>b__0(Object s, RoutedEventArgs args)
          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.RaiseEvent(RoutedEventArgs e)
          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 MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)