Receive this error when clicking the Hotlink Button: NullReferenceException in View.HotLinkDetailsExcelView.ComboBox_SelectionChanged


 - The user creates a record and changes the method/derivation to HotLink 

- The user then makes a change to the Excel File, e.g. Moves it, deletes it, renames it. 

- The user then goes back and tried to make a change to the HotLink Record.  

- Click on the HotLink Button on the record  

- Double Click on the Hotlink Attached. 

- The application crashes. 

Solution: Remove and re-add the hotlink.