I just got around to updating to swift 3 and one of the problems I immediately faced was that the camera doesn’t center vertically for iphones anymore. I checked chapter 5 when I thought that there had been a work around and sure enough there was. I can see that its directly related to offsetting the vertical frame, so by removing the overlap term from the setCameraPosition function, I was able to get my framing back.
Is this problem resolved now in swift 3 or does the work around on page 127 still have some other use?
i would definitely check your anchor points on your scene