Okay so here is the deal. If you are able to find a fresh instance and want to spawn this creature please, try to do it in a way that more people other than you can spawn it. Which means spawn the creature with the bait and then move AWAY from the cave. Lead it a little bit further away and only kill it then. It will start splitting into smaller golems and then a small boss will spawn again near the cave. Please lead that one away from the cave or the spawn point will bug and no one not even you will be able to use it unless new instance pops. Thanks in advance.