Object reference not set to an instance of an object error when click on Card View window (4238603)

When viewing data on the data tab of a table, right click on data grid and selecting Show | Card View from the context menu, Card View window appears, but if the mouse is clicked anywhere in the Card View window, the below error occurs.

'System.NullreferenceException
Object reference not set to an instance of an object
Stack Trace:
at Quest.Toad.Grid.ToadGridControl.gridView_ShowingEditor(Object sender, CancelEventArgs e)'

WORKAROUND:
None

STATUS:
Waiting for fix in a future release of Toad for SQL Server.