Well, thanks for the comments. Ratteler: Shadows were on during all the renders. The lights were the default P5 light setup with one additional light. I turned the shadow off on the one light I added; that's all. And that shadow was off on all three renders. So all three renders had the same instructions as to the shadows. Entropic: This pz3 was not ported from p4 to p5. It was the other way around. I made the scene and saved it in P5.