Strange Transparency Appears Only in Fat Morph

[slar]

Hi! I recently converted a formerly male mesh into a female mesh and made it into a top. I've checked in-game and my regular morph appears fine; however my fat morph has these transparent slits around the collar. How do I fix this problem?

In Bodyshop...The zombie-like sim only eats pixels!
http://i49.tinypic.com/15ygsar.png

In Milkshape...
http://i45.tinypic.com/jz8qhj.png

I uploaded my mesh to a file-sharing site below in GDMC format.
http://www.mediafire.com/file/czngy5ywwzc/Exported GDMC Leather Vest Slar.rar

[HystericalParoxysm]

Double check the bone assignments in that area. That looks like the seam you probably got from combining the two meshes - so the bone assignments in that area are probably off. Easiest is to select the vertices at the corners and bring up the Unimesh Bone Tool and just do "apply to all, commit all" on each vertex (which is probably two or three vertices, just all in the same spot) along the seam.

[slar]

I actually didn't combine any meshes to create my fat morph. I duplicated my normal morph, made the arms and hips wider, and used the "move" tool to pull the boob region out a little. I'm afraid I may have ripped a few vertices apart from their connections in the process.

http://i49.tinypic.com/2qvqazp.png
I can see inside the mesh near where the jacket contacts the shirt in the boob region. At least where the collar contacts the jacket the faces are intact and I can't see into the mesh. Feel free to download my mesh (I provided a link in my first post) if you need to see for yourself. Thank you for your advice so far.