WetFX Decal & Shader Kit problems

puggonn_1873d69a5e

When I apply a decal such as slime or milk to a character I not only get the drips of milk but I get a perfect square of white that surrounds the decal as though its a part of the decal, of which I assume it is. Of course, all I want is the drips and drops of milk part of the decal. Any ideas about what I'm doing wrong?

crosswind

Is there any geo-graft on the character?

puggonn_1873d69a5e

Will that cause the problem?