While in NX software it works properly
bug.3dm (154.4 KB)
I don’t think it’s a bug, but a limitation of Rhino’s intersect.
I have posted many of these cases in the past …
If you try to empty from the bottom face (the base) it should succeed.
It has exactly both limitations and difficulties in implementing it
I hope they fix it and add new option
what about putting the fillet on last?