I’m still new so hopefully someone else will come to explain in more detail but they way i understand it if you use a overlapped map whatever overlaps will get the same image or texture lets say you have a image with arrows going right and your mesh is the robot orb they use on here a lot well if you are lucky, and you map it on to the mesh the arrows will be flip on whatever is overlapping so it will not look right but that’s if you don’t get a error or if you texture it might look bad so basically to sum up it will put the same texture on the overlapping part so to put it in 3d perspective it could be the left side of the mesh and the right side of the mesh looking the same and it can cause errors with normal and probably other things i would just avoid doing like he said it’s a art
