[SOLVED] Heterochromia Skin Detail showing up blue in game

Hi, I'm converting Dangerouslyfreejellyfish's Whisper Eyes Heterochromia for Infants as a skin detail for private use, but when I use them in game, they show up with a blue tint. Does anyone know why this might be happening?  

Edit: There were issues with the imported texture maps, specifically, the normal map. Found solution here.