Weird bump in Fawne Gathered top.

IsaacNewton

I have Fawne Gathered top (Fawne Clothing and Accessories for Genesis 8 Female(s) by 3DUniverse) applied to Indiana character (Indiana Character for Genesis 8 Female(s) by 3DUniverse) and I get a weird bump on the right side of the clothing that is not present in the base mesh (as seen in Zbrush). I have tried using a dFormer in DS to move the bump but it has no effect on the bump at all, though it does move the mesh around it.

Anyone have any ideas?