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second drawback:

Poser doesn't export the Genesis figure correct. neither to Vue nor as OBJ you seem to get a sub-devided mesh (see butt in image above), so external rendering is a no-go, what breaks my workflow.

 

If your talking about that zigzag line across the butt, I don't think its a subdivision or smoothing error. It looks like a split edge, along a material zone (or perhaps just a phong break, I can't tell.) The smoothness of the rest of the mesh suggests theres no problem with smoothing or sub-division.

Is there a split/break on textures option either in the export or in the import that needs switching off?

regards
prixat