[Complete] Unscheduled Server Maintenance - August 1, 2014

This might be the the reason:
http://maplestory.nexon.net/community/#%...26nxid%3D6

Invalid thread.
Could this 'exploit' be when THEY added/removed s'hit from the shop, resetting bought expansions? If it is, they're at fault, not the players.

Edit: Oh. That's stupid.