I have a really annoying problem. When I render my characters strange curves and lines appear and I don't know why.
As you can see on the image below, at the red arrows, there are those lines.
At the arms i used patch layers, but at the hip i did't use anything just hidden the bottom line of the chest.
This problem appeared at the connection of the legs and the loin too. (I used there path layers too.)
Any tips?


(Click on the image to see it bigger and sorry for bad english.)