{SOLVED} Weird coloring in shoes

Hi~

I'm trying to make/convert a pair of shoes, but they show a weird discolored/light colored band in CAS.
Shoes preview

So far I've tried:
Deleting the normal map I baked in blender
Deleting specular and shadow map
Removing the feet completely from the model
Making the strap of the shoe wider to the point it isn't even touching the rest of the shoe
Deleting double vertices and inverting normals in blender, then reimporting
Remaking the package with a different pair of shoes as a base

I'm using blender 2.76, s4s 3.1.5.8 (wishes) and photoshop cc. The textures are HQ sized and my graphics settings are at max.

Package
Normal map
.blend file






Thanks in advance~