When I first started (midway through P6) I got the BugBox butterfly wing set.  It previewed fine, but when rendered it showed a lozenge pattern of darker/lighter areas.  The Bugbox set was made for P4 and P4 Pro Pack.  As of P5, Firefly now perceived the orientation of polygon normals, and it turned out that the Bugbox wings had normals in adjacent polygons facing opposite directions.

     The defect was always there in the mesh, but P4/PP was blind to it, whereas P5 and P6 saw it.  Ticking the normals forward box in the material room is a quick fix, and I still use and enjoy the Bugbox set.

     The stock DAZ figure David (and others) do not show this issue.  JoePublic's highly modified mesh does show it.  The mesh defect was not apparent in earlier versions of Poser, but the fact remains that PP2014 SR1 is only revealing a defect which is present in Joe's modified mesh.

     That said, you can bet that SM are investigating the SR1 Firefly build, looking for any bugs specific to this.

     If you wonder "wouldn't it be better for Firefly to ignore normals orientation?", consider that some recent rendering features -such as SSS- need to consider normals, since they must calculate whether the light is entering or exiting the mesh.

     So, what do you say we all just relax a bit, have a glass of chilled merlot, and wait to see what the SM skunkworks comes up with?

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5