Catia V5R21 Surface Color Mix Problem

[oderun]

Hi! I am new at Catia and using V5R20.I download a Lambo model. And wanna change its color. I changed so many surface without problem .But at 3 surfaces they are not looking good. For example it was orange and I changed it to yellow . So, surface looking like have mixed color.Do u have any idea for fix it ?

 

[MrCATIA]

You might have two or more surfaces where you have the mix in colors. Try deleting or hiding one of the surfaces.