Save as dxf macro working differently on different computers

Attached is a macro we use to make flat patterns for production.  It used to (and still does on some computers) save the file as “file name.configuration name.dxf”.  4 people in our company got new computers and the macro saves the file as “configuration name.dxf”.  However, the macro still works fine on one of the new computers.  any ideas on what might cause this behavior?  We are all on windows 10, SW 2017 SP3.0.  I'm not sure if this belongs in the macro section, but i'm not sure where to start looking for a resolution to this behavior.

Appreciate any help you might be able to provide.

Brian

SolidworksApi macros