When I import a fbx or .obj with UVs to Zbrush and send to keyshot renderer the UV coordinates dont work in Keyshot 7 Pro for Zbrush I have had this problem also with Keyshot 6 Pro before upgrading to Keyshot 7 for Zbrush Plugin Model UVs dont carry over to Keyshot. I have tried the UV legacy settings and the other UV setting but the only way to get my Substance Painter textures to carry over is the choose Box or Sperical. I have noticed that there are other users of Keyshot for Zbrush that have the same issue getting UVd models to work in Substance Painter textures or any other The Foundry Mari textures.