This is placeholder topic. I have uploaded a file that hangs consistently when I do Interset.
On my system, if I intersect the the surface (with the black line through it) with the block (with the holes on top), I get a hang.
Thinking this might be a reproducible instance of the intersection bug, I uploaded the file to the support site with a link to this post (before I modified it to do a work around).
I had a file that consistently hung on intersect. Then I rebooted and intersect worked fine. This suggests that there is some system-wide resource involved in this notorious problem.