ParticleSystem leaves a trail when plays

Hi everybody. I’m having this issue with ParticleSystem. I have an object with child particles, that follow a path when it shoots, and get back to the center when it ends. Because that object moves, when I call Play() on particles, it leaves a trail from the last time it played.

https://dl.dropboxusercontent.com/u/108692101/Particles.jpg

I tried using Clear() before Play(), but it didn’t work.

You should set it’s simulation coordinates to local space, so particles will move with your object rather than staying where they were spawned