Mesh not apearing in geck

[vadezlaus]

So I've got the strangest probelm, i'm working on slightly editing a model in 3ds max 2010, heres what I do, if I import the model in and dont touch a thing then export it it works fine in the geck and in game, but if i edit the mesh by deleting buttons on the coat and then export it, it shows up invisible in the geck.

 

I literally have no idea what to do about this, i tried deleting and redoing the bdismemberskininstance, and it still shows up invisible, I am at my wits end

 

EDIT: I should add i have tried following every tutorial I could get my hands on, all to no avail

Edited May 12, 2015 by vadezlaus