Question Particle system is fine in editor windows, but appears inside the wall in game window

I added TinyExplosion from Unity Particle Pack to my scene.
Oddly enough, when the explosion is close to a wall, it appears to be inside the wall in the game window, but looks fine in the editor windows.
In the screenshot below I have the game window on top, and you can only see a tiny bit of the smoke from the explosion. Below the game window I have three editor windows (back, top, side), and the explosion looks fine in each of those.

If I move the TinyExplosion along the X-axis, so that it is no longer in line with the wall, it looks fine in the Game Window as well.

What could be causing this?

 

@Caliber
Okay. Do you have the particle explosion on another layer?
That might possibly be the cause, of the strange problem you're having.

 

It was in another layer (intentionally). I changed it to the same layer as the world geometry, but the issue persists.

 

Okay.
Now I'm wondering, if this is some sort of z fighting + camera issue.