I'm assuming that the component list in the rules book is incorrect. It says that there are 4 "water/reef" tiles (I think that they are the 1 x 3 tiles, I don't have my copy handy to confirm this) and there are only 2. I'm assuming that the book is wrong, because there was no cardboard pcs. missing from the cardboard sheets. Is there anything official about this?
Same here, I am also missing the tiles and assume the rulebook was wrong. Did not actively check if there are scenarios that need that many tiles, but I fear there is at least one.