Unity makes model have 2 mouths

So my model looks just fine in Blender, but when I take her into Unity, it makes her have 2 mouths. Does anyone know how to fix this?

177564-unity-2-mouths.png

Okay, so I found a fix for this. For whatever reason, this model will try to add an “L Mouth” whilst using the same texture for the right mouth. So I made a new texture which was just the regular skin PNG, but I removed the mouth

And then I imported that texture into Unity, made it into its own Material, and dragged said Material to the correct part of the Mesh and HURRAY! No more second mouth! 177610-no-more-second-mouth-woooo.png