Quote - There's no need to post the file, what I am interested in is what you actually did to create multiple Poser Surface Nodes. Is it something that actually happened WITHIN Poser, or did you manually edit the PZ3 file to make it happen?

This is a problem in the material room, if you apply several pose files to a figure or a prop  and in all these poses the PoserSurface node is named "PoserSurface" you don't have the problem, but if in one pose inside the lot someone renamed the PoserSurface node you may got an extra PoserSurface node.

The attached pose file include 4 PoserSurface for the same material with differents names showing immediatly the problem, but in a normal use of Poser i have see this problem only twice since i have Poser8.