Mixamo can't load my textures (appear as white)

Hello all,

I'm trying to import a .zip file into Mixamo to put a skeleton on it. However, the model appears white and won't load the texture. After reading all the possible solutions that these forums have to offer, I still can't figure out how to make the textures load. My .zip file has 3 texture files (pngs), an MTL file and an obj file, which has worked for me when uploading other similar models. Any help?

Thanks,

-Tomás