Particles only rendering in Sceneview from an angle and never in game

Unity 3.5.7f6

Basically no particles are rendering in our game, but we can view them in the scene view when we rotate the camera as per this SS:

Used to be that the particle effects would EVENTUALLY start rendering during a session but not even that no longer occurs.

We are using an ortho, vertex lit camera and all particlefx are in layers that the camera can see.

Any answers?

Try adding this script to the emitter and adjusting the Render Order past 3000. Also make sure the depth of the Ortho Camera is deep enough and you clipping planes are big enough.

public class RenderQueue : MonoBehaviour
{
    public int renderOrder = 0;
    int lastRenderOrder = 0;

    void Start()
    {
        renderer.material.renderQueue = renderOrder;
        lastRenderOrder = renderOrder;
    }

    void Update()
    {
        if (renderOrder != lastRenderOrder)
        {
            renderer.material.renderQueue = renderOrder;
            lastRenderOrder = renderOrder;
        }
    }
}