After making clothing for CC4 and exporting it to Unreal engine all my clothing have hard edges.here is my workflow

• Exported the character in T pose from CC4.
• 2. imported the character into zbrush where i make the clothing and retopologize it and export it into maya.
• 3. In maya I do the uv mapping and make all the edges soft edges and then export it.
• 4.In CC4 i import the clothing, copy the skin weights and everything looks good. there are no hard edges inside of CC4.