Hi. Is your version of wishes the latest? I re-imported the last blend you've shared in your package and, oddly enough, it looks fine for me. I have 2 guesses: 1). Wrong cut numbers. The lowest part of legs should always have cut number 0000. So you should switch cut numbers between s4studio_mesh_3 and s4studio_mesh_1; 2). If the first solution won't help, try cloning this dress and importing your mesh there. I think it is caused by the fact that the item you've started a package from ( a swimsuit ) does not have b__L_Skirt__ and b__R_Skirt__ while the mesh you've transferred the weights from does. This dress has both vertex groups and the same number of meshes.
Also, as you see from the first half of the pic, there's this shine on the front part.It can be either a specular map or a normal one.
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