Mobs keep coming back to life.

I was just running a gold t5 map, and there were 4 mobs that I encountered in the 2nd pull, that would keep coming back to life after I killed them, with a roughly 1-2 second pause between their death and coming back to life. I thought this would pass, but I ended up kiting them from pull to pull through over half the map, killing them again and again with every pulled pack, and them coming back to life in seconds so I would have to repeat. Only thing is that i had zero time to collect any loot, much less even try to mouse over the mobs to see what kind of buffs they had on... not even time enough to try to portal out... out of frustration i just went hands off and died to get out of the shitty map.

This is the 3rd time this has happened...

I had something like this before. The mobs were minions and 'somewhere' on the map, there was another mob that constantly revived them.

The range for revival seems to be unlimited. I managed to find the summoner and it was over. But it was really annoying.