Quoted from Flippersaurus:Here's a pic to try and show what I'm talking about. It's kinda hard to capture with my phone. But you can see that when the light hits it the right way it's very noticeable. When I'm playing, there's about a 6" X 6" area where I can see the ribbed texture over the art. This texture is over the entire playfield. Even in the pic, the parts that look ok, actually have it. It's just that the lighting is not showing it. If you zoom in, you can see there's a little depth to it.
If the fine vertical lines are also evident over the plastic INSERTS... it's simply sanding lines left over from the drum sander they use to level the entire PF after the inserts are glued in. It's not pretty and they probably could have used a less coarse paper to do the job (as with earlier BLY/WMS games) but what can ya do?
My LOTR shows this as it also has a thin CC. My TSPP and TWD have more of a glass like appearance as they have thicker clear that hides these lines.
So you may have one with thinner CC on it but with all the problems they've had after TWD with thick CC it may be a blessing.
I'd forget about it as there's not much you can do.