Crash When Ctrl+C in Expression Editor

I’m running V3.5.9.15 and have crashed while using ctrl+c when editing a “Calculate new columns(s)” expression. Here is the error:

Object reference not set to an instance of an object.
Exception type: System.NullReferenceException
Stack trace:
at .( )
at . ()
at .(Key )
at .OnKeyDown(KeyEventArgs )
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
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.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)
at System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)
at System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)
at System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
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)

Hi @Ben_Fairbank and welcome to the Community,

Thank you for reporting the bug. V3.5.9.x is a beta of v3.6.0. It has experimental text editor that was disabled in the production version 3.6 released recently. Please update your EasyMorph copy to v3.6 at

If the problem persists please post a message here.