Copy contents of results grid with headers fails with error "Exception: System.NullReferenceExcep (4310355)

Run a query. Highlight home cell of results grid to select all rows then Edit | Copy
Select "rows with headers" and failure occurs:

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Exception Information
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Exception: System.NullReferenceException
Message : Object reference not set to an instance of an object.
Stack Trace:
at
Quest.Toad.Gui.EditProxies.GridControlProxy.GetViewDisplayText(GridView
gridView, GridColumn column, Object celldata)
at Quest.Toad.Gui.EditProxies.GridControlProxy.DoCopy(GridControl
control, Boolean fullRow)
at Quest.Toad.Gui.EditProxies.GridControlProxy.DoCopy()
at Quest.Toad.ScriptResults.ScriptResultsControl.DoCopy()
at Quest.Toad.Editor.EditorForm.DoCopy()
at Quest.Toad.Gui.MainForm.copyButton_ItemClick(Object sender,
ItemClickEventArgs e)
at DevExpress.XtraBars.BarItem.OnClick(BarItemLink link)
at DevExpress.XtraBars.BarBaseButtonItem.OnClick(BarItemLink link)
at DevExpress.XtraBars.BarItemLink.OnLinkClick()
at DevExpress.XtraBars.BarItemLink.OnLinkAction(BarLinkAction action,
Object actionArgs)
at DevExpress.XtraBars.BarButtonItemLink.OnLinkAction(BarLinkAction
action, Object actionArgs)
at DevExpress.XtraBars.BarItemLink.OnLinkActionCore(BarLinkAction
action, Object actionArgs)
at
DevExpress.XtraBars.ViewInfo.BarSelectionInfo.ClickLink(BarItemLink
link)
at
DevExpress.XtraBars.ViewInfo.BarSelectionInfo.UnPressLink(BarItemLink
link)
at
DevExpress.XtraBars.Controls.CustomLinksControl.OnMouseUp(MouseEventArgs
e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons
button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at
System.Windows.Forms.Control.ControlNativeW