can’t generate hatch out of this curve (due to sharp “kinks”/corners). Works fine in Rhino 7. 3dm attached (one that does and doesn’t work)
(8.0.22291.12305, 2022-10-18)
Commercial
sample-problematic-hatch-non-boolean-curves.3dm (39.2 KB)
this-works.3dm (41.5 KB)