Hello. I am making a model in Sharpr3D. I have a problem: I have several objects intersecting with a single object (an STL of a digital elevation model). I want to subtract the DEM using the subtract tool, but an error message appears saying there was a boolean operation error. When I select only a few models, it seems to work, while with others it doesn’t. All bodies have sketches on the same plane. What could be happening?