Disconnect the color map from the Diffuse.

i allways check bump, displacemet maps on pure neutral gray figures.
it is the only way to see what is going on in bump, displacement, normal maps.
One at the time.

Afterwards, combine, one by one.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!