This is PEQ forum :
http://www.projecteq.net/phpBB2
About your problem, are you sure that the mobs were there ? You may see them because your client didn't got any refresh concerning their loc and displays them at the wrong place (eventually where they spawn or where they stop in their wandering), althought they may be somewhere else, its kinda frequent, and not harmfull since they won't agro you from that wrong spot.