How do you add a custom texture for a static item to your workshop via the CK?

[screaminseahawk]

I feel like everything is done correctly, but the texture for this rug comes out purple both in the CK and in-game. The good news is that I put it in the "Special" category of the Workshop and it shows up in-game, with the correct name and materials needed to construct it. It just doesn't have the textures I put in the material swap. Any help would be greatly appreciated.