I'm not writing to ask for a solution, just to vent a bit. So, I'm in P5 having a truly wonderful time with the new Forest Ruin by Transpond from RDNA. I'll admit, I think I was over-taxing my system a bit with the amount of stuff I put in the image, but things seemed to be going OK. And I was almost done. 3 people figures--yes, 1 was V3--8 clothing figures, 2 hair figures, the forest ruin complete and two trees-type figures. And the textures I used were probably pretty large for the people. Anyway, I was starting to play with the lights, being mindful that I probably couldn't do anything terribly fancy. I clicked on light2 and Poser disappeared. Just like that. Yes, I panicked. I checked my resources to make sure I just couldn't see it, but it was gone. For safety, I re-booted, restarted Poser, and re-opened. It wouldn't open. Tried again. Nothing. I opened the file in EditPad and the file had been truncated after the material setting for Light2. At least half, if not more, of the file is just gone. sigh I think this time I'm going to create it in pieces and export to Carrera, Bryce or Vue. They can probably handle it better. BUt, darn it, I wanted to use the Skin node in the material room. don't know if there's a moral to this other than save backups. Or have two versions of your file and switch between saving them. It's never happened to me before. I've been dealing with the quirks of P5 and have actually been very happy. This is just disappointing. Anyway, I wanted to share to warn others, not to bash P5. Yes, it has problems, but so did P4.