When laid, the egg comes out round end first.The strange thing is that she isn't eating the egg, nor is she pecking any other eggs in other nesting boxes. It doesn't happen every day either, maybe twice/week and always on the pointy end of the egg. I wondered if maybe it was getting cracked if she stood while laying and it fell to the box floor. I keep straw in the boxes but they always seem to push the straw out to the edges exposing the plywood.
I too have seen pecked eggs on the pointy end. I wondered if it might be the hen pushing the egg back under her? Not broodiness, just "Hey, get back where you belong," type of thing. I've seen that when there's just one (real) egg in the nest, ie, the one that that hen laid.