Edited Fallout New Vegas armor doesn't come off when I unequip it. Anyone can help?

[crookedfinger645]

I'm having a problem with editing an armor from FNV and was wondering if any of you guys could help me.

The armor in question is Benny's suit, I wanted to edit it to give it a buttoned up collar and tie so it would look more formal. I edited the armor in Blender and then exported it as a new armor. I put it in the GECK and it shows up fine, later I put it on ingame and the suit works fine too, there's no problem. But then when I take it off, the part of the suit that I edited stays on my character. Does anyone know why is that and what do I need to do to fix it?