Got another email directly from the printer. Seems like there was some mis-communication regarding the error. Both Challengers and these advance copies do have a page missing. If you have gotten your TPBs already, the page missing is between 103 and 104.
Apparently, this is the page missing:
I was able to get 2 copies of the Challengers Editions, copy #4 and #100. The page you mention is in both of my books. It may be misplaced though. The pages are not numbered, but I found this page about 10 pages before the pin ups. Anybody else?