there is a similar - nearly identical topic here - did not get much attention though…
_curveBoolean produces similar intersection / overlapping issues.
… and just checked:
reported 2021-03 - still not solved in 2025-02
I still love the idea of dedicating my money for the updates to certain features.
I called pay and vote and posted here
I would love to see those issues being fixed - with much more importance than new fancy icons in V9…
cheers - tom