Using CurveBoolean on all curves in the attached file, with CombineRegion=No and triggering AllRegions command, it generates a great (apparently random) number of identical curves. Changing other options of that command still causes the problem. The defining cause seems to be having a region completely included inside another, or something similar. The generated curves are correct, but I just need one copy of each.
I’m using Rhino 6.16.19190.7001.
Thanks for your help.
CurveBoolean_issue.3dm (26.9 KB)