Think I've figured out most of the problems with BPS by now, which at least it is a good sign. But at the same time, new problems arised:
1) Found a bug in which if you fly in the preview mode and you are in water, you get stuck at a certain altitude and can't even fly higher afterward, not even by dying.
2) I inserted the generator room in my map, and found a peculiar bug, aka some patches of lights literally appears out of nowhere in random meshes. Here's some examples:
