I’m completely nee to nomad and trying to create a kigu mask for self use and I have been following a tutorial on YouTube, it says to invert after selecting self mask, use -5 height + mask setting, then check carve (which it won’t let me check) and extract on {Shell, Fill, Fill} and 8’ve followed it to a T except it keeps coming out like this or telling me there is nothing to extract but when I use wireframe there are no back color holes or anything inside. I used the move and crease tool when forming the face. I have more photos but it won’t let me post them here.