I have run into the strangest glitch I have come across in Poser 8. It seems to have started recently, though maybe I just noticed it now (I have been using it for years btw). I am using standard default Poser lights. If I load a single prop into the scene, it will only render as a black silouette, and there are strange intersecting square-shaped shadows on the ground plane. If I add another prop into the scene, it renders perfectly fine, no issue. If I delete that added prop, it goes wonky again.

Has anyone else seen this? If I uncheck "cast shadows" it renders properly as well, but naturally without shadows.

Do I need to re-install it or something?