I'm having a little bug at the Den of Evil at the last difficulty settings. When i'm near the end of the quest, and where it is supposed to show the 5 remaining monsters to vaporize, the quest windows is showing me 65k left to kill... as shown here:

My character is a Totem necro with a lot of "blue" monsters. Sometimes, when I have too much of those blue revives, my mercenaries isn't getting any experience. Could this be related?
Is there a fix for that?
Thanks in advance.
Ben.
EDIT: Sorry I realized i'm not in the proper thread... Mods, can you put where it belongs?