Specific Game Object - Particle Emitting

I have 2 game object in the game from the same prefab. I have a script that enables the particle emitter for fire and smoke. When I have 1 of the game object in the game, and collide with it, the fire and smoke appears like normal, but when I add another of the same game object, the second game object goes on fire and smokes, but the first game object does not$$anonymous$$ng. Why is that?

I'll type/draw it out.

O (1st game object). When collided, the particle emits works for both fire and smoke.

When I add in another object...

O (1st) O (2nd/clone). When I collide with either the first or second object, the second object will emit and the first won't. Ever.

If I clone it again (making 3 type of the same object from 1 prefab), the t$$anonymous$$rd will emit the fire and smoke particle but not the second of first. When I collide with either first second or t$$anonymous$$rd, the t$$anonymous$$rd will always emit.

Here is a script copy: The script works, the fire emits, but why won't it emit for the specific game object I collide with?

http://pastebin.com/M1fJQMJF