Particle System does not detect all the Colliding GameObjects

I have a ParticleSystem that has a simple script attached to it's GameObject:

Code (CSharp):

1. public class WaterCannonHit : MonoBehaviour
2. {
3.     private void OnParticleCollision(GameObject other)
4.     {
5.         Debug.Log(other.name);
6.     }
7. }
8.  

The Particle System is attached to a GameObject that can be pointed to any object and Particles are shot towards that object. I wish to detect the name of the hit object. But it only gives me the name of first object hit. Does not refreshes as I move on to hit other objects while particles are emitting. I am using Unity 2019.2.17.

The Documentation Says:

"The ParticleSystem receives at most one message per Collider that is struck."

"per" is not working in my case. Any suggestions?

 

[Solved].. The Particle system had multiple sub particle child game objects. "Send Collision Message" needs to be enabled on all relevant PS.