[GS] Unique unit models not working in game

[ChrisWJN]

I have a unit in one of my projects that uses the skirmisher armor and hat. Ingame, however, only the body attachment shows. Before, I had my Unit_Bins only containing the required pieces for my unit, but during my troubleshooting, I tried bringing the whole file over from the pantry and it still yielded no results. Does anyone have any idea of what could be causing the issue?