DUD was working fine and now not working.

On page load, the query works and results display.  However, if one of the filters is applied, it never finds matching results and then when filter is removed, won't return all results.

Here are some observations:

1. When attempt to access Setting of DUD in bottom right, it displays error '    A critical error has occurred. Cannot have multiple items selected in a DropDownList.'

2. If I delete out the module and create a new one, it is displaying many Dynamic Registration module #'s are displayed in the drop down.  Where does DUD retrieve the Dyn Regis ID's from?

Thanks in advance!