Edge pro equipped?
it might be the studs have created an oval shape since they're not locked down and that's why it's going out of tune maybe?
Being a brand new guitar, it would have an Edge Pro, so yeah, that's another possibility. Though I don't really know how quickly this can become an issue for a new guitar, whereas I have heard that the knife edges can be too thick straight from the factory.
Borgen, the knife edges are nothing more than metal inserts in the bridge which rest up against the posts and essentially provide the surface that the bridge pivots on. All Floyd type bridges will have some kind of surface that rests up against the posts and provides the pivot point, but with the various Ibanez Edges, this surface is a separate metal piece that's inserted into the bridge. You can see it in the pictures on Rich's site, though yeah, they are pretty close up.
Anyway, from what I've heard, these knife edges sometimes come from the factory not "sharp" or "thin" enough and thus don't pivot entirely reliably against the posts, thus the advice to sharpen them slightly and make the edge that contacts the posts thinner and more reliable in terms of tuning stability. I haven't experienced this exact problem myself and have never sharped any knife edges, so I can't exactly speak from experience here, though perhaps someone (like Rich, the unquestioned expert in such matters) might offer some more substantial advice.