i work in a print shop and i know how this happens. magazines are printed in sections (eg. p.1-16 , 17-32, etc. etc.) when they are loaded into the machine for binding they are loaded by hand. what happened was someone mixed up 2 sections, this is the kinda stuff people will get suspended for or even loose their job! it has nothing to do with the magazine itself, it was an error in the printshop. when this happens the magazines are gone through by hand, probably only a couple got through by accident. when the machine is running it can be going 5000-8000 magazines per hour, so it don't take long to spoil alot of books
just wanted to clear that up. also if you have subscriptions your chances of getting a bad copy are greater (mixed up pages are very rare) whenever there are bad books for either crappy color, misaligned photos, etc. they get put in the "mail pile" because they are already paid for, they want the ones on the shelf to look pretty lol