I've got 2 projectors combined in one pticture with 2 slices. I made the separate circle screen on the foreground in the middle, on which I thought the other separate picture would be projected. So I made 2 more slices with circle masks. According to my plan while turning off the two lower slices, the image on the circle should remain on. When I turn the right lower slice - the upper slice on circle is still at place, but on the level side it turnes off. Here are screenshots of my outputs https://yadi.sk/d/hXnYTGBFEyhrNQ
I also made 2 front slices without masks, but with circle slices, but Resolume made the sphere picture, but the back slice turning off was correct in this case.
Also I had a bug yesterday, while placing mouse on the upper slice of right projector — the picture of slice turned white, when I moved the mouse from it — it turned the correct picture on again.