I'm creating STEP exports out of Proe Wildfire 4.0 to send to our tooling vendor who uses Solidworks.  I've created curves in the Proe model to show texturing breaks adn checked the appropriate box to include them out of Proe:

If I re-import into Proe, my curves are there.  If I import into SW (2013), there are no curves.

How do I get SW to recognize and import the curves?

(EDIT: I've tried setting the Proe option STEP_EXPORT_FORMAT to ap203_is (default) and ap214_cd with the same results.