Ok, so we've pushed out an update that should fix this issue [raid looting bug] when you get a new dynamic zone. It will not fix it for static zones, however, we will be bouncing dragonscale hills at 4am 3/25/11 PDT. After that point the problem will be fixed in dragonscale for the anniversary event. Other static zones will not get the fix until the next full server patch.
-- Steven S. Klug, EverQuest Lead Programmer
From this SOE forums thread.