Oh I’d say not to worry about it, it’s not like you’re doing something too wrong per say, it’s just that the process result depends on a very finicky operation. When you use booleans most of the time it can go haywire for the simplest things and it’s too hard to diagnose why. So most of us just go along with it and try to change some setting or move things a little bit and hope for the best. In time you get the hang of it and you can tell when some geometry is going to cause problems. But in the end, it’s too chaotic to predict. JL comments on some of the things you can do when it becomes a minor headache in the course, but other than that I’d say just don’t try to control it too much and know it is going to act up from time to time.
