Scout's feet disappear when hat is equipped.

[LaithArkham]

Screenshot of the issue using itemtest:

http://postimage.org/image/h32tp8akr/

I've made this helmet for seven of the nine classes (everyone except Engineer and Pyro). It works perfectly when worn on six of those seven; only the Scout has this issue. (This issue does not occur when the helm is loaded onto the Scout via "load weapon" in the HLMV, if that means anything.)

I should mention this is my first Source engine project ever, so I have no idea what this issue could be caused by, and if it's something I should worry about/try to fix before I submit the hat to Valve. If anyone could help me figure out what might've gone wrong, it would be much appreciated.