Shatter Effect - Flicker issue
So my Easter egg thingy is live, but I can't seem to get rid of a very annoying issue with the sides of my extruded egg flickering. I have played with loads of settings and seems it only happens on custom maps, but maybe due to these maps being more complicated. I am using the recently rediscovered shattermaps. It seems to happen even on 1/4 quality play back, and even also when just looking at the wireframe, this flickers also. There are no grades or other effects on top, I turned the layer back to 2d and still happens.
Anyone else noticed this kind of behaviour.