If you've been strolling around Exodar looking to buy something off the local boat and Zeppelin vendors, then don't be too surprised if you don't find anything there.

Various reports from players in Blizzard's World of Warcraft have noted the disappearance of these familiar NPCs in major cities everywhere. Gryphon from the WoW forums brought up the matter, hoping to find an explanation from the people at Blizzard.

This was confirmed by several others on the forums as well. This was already previously noted on the European WoW forums, although no solid reason was pinned on it.

Forum moderator, however, Nethaera was quick to respond to the missing in-game NPCs. Apparently, the problem was tied in with some boat spawning issues related to the vendors. She explained it by saying:

There are some propulsion issues being worked out by the technicians for both boats and Zeppelins. Once this is resolved, we should be able to put the vendors and NPCs back on duty.