Screenshot is of when the phantom 'sim' stopped playing chess and went to do something else. This was at roughly 9:300PM sim time, when sim was still at opera (left to go there ~8) & portrait greyed out. As noted in the post, the sim re appeared when I went in after exiting. I presume that is what you meant by move out and back in. An not sure what you mean by an automatic back up. Am positive did not save by accident. I was nowhere near the buttons for doing that in the upper right corner.
Table solidly on floor. Just the angle. Only ghosts I know of are the ones on the 5th floor of the building where I work. It used to be an old mill, and all sorts of sad things happened in those places in the old days.
