I try to knap pumpkin or leather and at first the Hud apears but when I start to carve it kicks me out of the Hud.
Any idea as why?

Ps: its only when its one item, when I have 2 pumpkins it works

It is a known issue on Firmalife
eerussianguy/firmalife#137

It was crashing before, now only works with 2 pumpkin.
Firmalife dev is still working on a fix.

thx!