Hi Pilou,

re:
> No problem i had saved it in case of! :)
> https://moiscript.weebly.com/uploads/3/9/3/8/3938813/unexpectable_result.3dm

Thanks, that was a bug where the "curve from 2 views" mechanism in the Intersect command was causing some 3D curves to be targeted by a swipe when they shouldn't be.

I've uploaded a fixed version, this one should now ignore this case instead of mistakenly targeting 3D curves.

Thanks, - Michael