Particle system bug?

So I've been playing around with extending the tutorials and learning things with TX. I attached a particle effect to my bullets to create an exhaust trail behind bullets. I pretty much just created a particle effect where the particles don't move. In the code I clone the effect and mount it onto the bullet. That part works fine as you can see from this screenshot: http://img206.imageshack.us/my.php?image=strayparticlesei3.jpg.

If you look at the screenshot though you will notice a random stray particle. It seems to be one particle per shot that I fire and it always seems to go along the same line from my ship (assuming I dno't move my ship). Anyone have any idea why I would be having these stray particles?

Here's the code I'm using to mount it:

if (exhaustTemplate != null)
                    {
                        // Attach it to the projectile
                        T2DSceneObject exhaust = exhaustTemplate.Clone() as T2DSceneObject;
                        TorqueObjectDatabase.Instance.Register(exhaust);
                        exhaust.Mount(projectile, "exhaust", true);
                    }