Inset fails on one face

Hi,

I’ve made a bunch of circles then SplitFace.
I’m now trying to Inset all of this then PushPull.
For some reason, Inset does not work on the third sub-face…

InsetNotWorking.3dm (143.0 KB)

Yep, I can reproduce this. I opened the issue here.

Thanks.

Actually I think it comes from SplitFace, not Inset. It works if I remove the outer circle from the splitting curves.

I found a bug in Inset as well. For now you might be able to run DupBorder on that face, Offset the curve, then SplitFace as a workaround.