for my project, i work with deacls
decals are great and nice to handle but now i have a problem

please look at the pictures ( and dont stare at the boobs )

at picture nr.1 i place a decal on the left side of a entity
looks fine
picture 1

at picture nr.2 the decals is shredded but the entity have the same meshes
both sides are the same
picture 2

if i place the decal a bit down it will work on both sides
picture 3

picture 4

the next question i have is
i wanna place the decal at the right leg, but it appears on both legs
why?

picture 5