No, it wasn't the transparency settings--that's the first thing that got checked. It does seem to have been fixed, though. If you conform it, then delete the character you conformed it to from the scene, save the wings (or whatever) to the figure library then load it again, it shows up just fine. So you may want to try that, Joelglaine.

It wasn't the mode either---it was some issue with Poser 7 and the V4 Developer's kit.

But a fix was discovered, so it's not a problem on this end anymore. :)