Hey guys,
We've been looking into this and we've discovered that there was, indeed, a printer's error in which a number of Dungeon 146's went out without the "Scuttlecove" map. We are very sorry for the mistake and we're gonna do everything we can to make sure you get your maps.
If you've purchased a Dungeon 146 that is missing its map, please let us know at
customer.service@paizo.com. Include your mailing address (and Paizo.com profile if you have one) and we will send you a copy of the map as soon as possible.
Once again, we are very sorry for the inconvenience and if you have any further questions or concerns, please let me know.
Thanks!
Cosmo