I'm trying to map the referenced model's custom properties of a SLDDRW file to the drawing's data card in PDM.  I have followed the instructions at http://help.solidworks.com/2012/English/EnterprisePDM/Admin/t_SolidWorks_PRPSHEET_links.htm and have not been able to get the properties to map.  I've made sure to enable the EPDM add-in in SolidWorks and as directed in the admin guide have opened the drawing, made a change, saved the drawing, and checked it back in.  I'm still not getting anything to show up in the data card.  I've attached an example of one of the variable mappings.

Does anyone have any idea where I'm going wrong?