Help with file, what do I export first?

Hello, Developer Forum! I was recently trying to make a GFX for a MILSIM group I am in. However, I encountered an issue. Whenever I make a GFX, I put the humanoids parent as shirt, then export the more than two hats. While doing this, when I went into blender with PaintVRig I would try and give the rig the texture (shirts and pants) but it would not work. Somehow, whenever I tried to give the rig a texture all that would appear would be the textures for the hats and face, how do I correct this.