Bug in Quest "Dead Sea"

[SgtSmok3]

Hi everyone. I think I might have found a little bug in the quest "Dead Sea". When I go into the wrecked ship the quest tells me to kill the mobs inside. However after I defeat the first duo of Crabs the quest just doesn't go on. It still tells me that I need to kill monsters in the ship but there is nothing I can attack... just NPCs standing in front of crabs, doing nothing. Did I miss something or is it a bug? Thanks