How to change Badges. I change Title badges but icon badges not change.
Celui que vous voyez sur votre avatar est en réalité un effet d’avatar et non un badge. Il est défini au niveau du groupe.
You mean flair. 
@Bank_Live it’s because the flair is the primary group that you are in.
You just wasted seconds of my life that I will never get back with that unnecessary pedantry. 
I find it’s always a stellar idea to correct someone who is helping. I’m pretty sure the point was conveyed well enough to find a solution.
Thank you very mush.