Did you take into account that zbrush flips the UVs vertically? Textures created inside of zbrush should be manually flipped vertically prior to export, in order to match the model (which flips automatically)
Thanks cryrid, that was the issue. I thought all my maps were facing the right direction when I looked at the UV's in Zbrush and the map itself in PS. After ticking the "Flip Vertical" box in multi map exporter and a few more tries, everything worked out properly. Thanks for that tip. I didn't realize zbrush flips the…