[GMarshal]

Hi, thanks for replying.
Actually, I dont use any weight maps yet. The thing is I have like random points in this area, as shown on the screenshot. When I delete them, nothing happens, but when I go to Subpatch ( hit [Tab]), Modeler says it cannot convert some polys to subpatches.
So here's a screenshot of my points. I think I know the problem, but cant fix it.
Thank you