Alternate Everquest

So, regen on mobs got taken out pretty much.  NPC's don't seem to regen anymore at all.  This may be good for the lower levels, but now literally mobs that summon stay the same HP for hours or days, I was in dulak today, and a named on the windscorn ship stayed 83% hp for at least 2 hours.  Is there a fix that could be implemented to check for aggro and then at least let NPC's start to heal. 

Had this same issue in The Pit, where a summoning mob would not heal, therefore putting a puller in a summon loop, even after several minutes FD and forgotten, they could not get far enough away to get out of aggro range.  The NPC stayed below 85% for 30 minutes before the group called it.