Saving does not help you in this instance. This particular corruption will trash each related file ass back to the 1st. Each time you open a previous save you find the same mess. I went back many saves. I save a lot. In my case, I must have deleted a .pmd while housecleaning. Think about it. Geometries on P6 Runtime, Characters on another. Pz3's saved to another drive....things get complicated. If your Runtime is not linked properly,,,(get file searches)? Doom This happened to me during SR1. They said it was fixed in SR2. I do not know. I no longer use binaries and live with a little hd bloat. Better than the alternative. .pmd's are a great thing. Great for merchants and great for loadtime of your scene. Fast as spit. Almost half the filesize. They are easy to lose in a batch delete. And if you have developed a few a characters or scenes from that deleted/lost original? All trashed (before). Nodes connected or not. Big scenes or a single figure in a blank window after a reboot. No diff. (msg24 7 and I are in deja vu). At least, that was my perseption of my problems. I unchecked "binaries" and it all stopped. Again SR2 is supposed to fix this. Then again, there are people here who have never crashed! Make your own conclusions.