Why is my compositor only affecting one element of my scene?

[Owatch]

What I have done: I created a small particle system based on a vertices, then duplicated the system twice and changed some colors.

What isn’t working: Once I get back to the Compositing layout and I change some effects I notice that only ONE particle system is undergoing any changes. What happened? I want to have the compositor affect everything in my scene!

Here’s an Example:

Before Tweaking the Glow:

After Tweaking the Glow:

Notice how only one streak is getting affected. What’s going on?

[Little-me]

Lower the streaks threshold value and all should work as expected =)

[Owatch]

Thanks, this worked pretty well.