I have a similar issue with my copy. I sent the following to CS the other day:
Just received my copy of the above and was bummed to see that the slug for pages 33-48 is inverted, the color registration marks are visible, and hence, that truncates the "top" of the page (which is at the bottom). Looked at the PDFs in my downloads, and they appear to be ok.
After that set of pages, things are ok again. I _think_ everything is there, but haven't done a 1:1 check with the PDF.