Hi guys I'm trying to make a very easy particles system with instanced geometry (copy stamp and stamp function connected to the switch sop in order to mix the geometries). Particles live 1 sec. They born and until 0.99 sec everything is ok, after that geometries start switching from a point to another. maybe is something link with particles id. (look at the attached hinpc will be easier to understand ) I hope someone can help or just tell me if there is a post where this problem has been solved already Thnaks a lot E.