I had something similar happening to me recently. My latest saved version of the scene opened with objects missing and/or it refused to render (stopped at "Loading textures"). The solution seems odd, but this is what I did: Restart Poser, open an earlier version of the scene that I had saved, with a couple of objects less. Then I did a couple of area renders in different places. After that it was time to open the newest scene version, without closing Poser first. And now it worked! I think I did a couple of area renders here too, before rendering the whole scene. Poser 6 SR2, Windows XP Home.