Select NPC's have no mana to affect and cast (infinite?) Complete Heal.
 

This was most likely an existing issue, but due to push mechanics changes some mobs have become nearly unkillable.

• Lepthida
• Yendilor the Cerulean Wing

When Theft of Thought is cast on these mobs the enchanter gets the following message
[Tue Oct 01 23:05:47 2019] Your target has no mana to affect

Linking to my thread for visibility:

https://www.project1999.com/forums/s...d.php?t=335165

Grozzmel too....

I second this. We just tried to kill Gozzmel in HoT. None of current effective stuns worked. He had unlimited mana and continued to CH. Had to camp the entire raid and clear agro.

The second issue is the wurms in HoT. They path through the wall and ceiling, you are unable to hit them, and they create random agro on players. HoT is pretty much a no go atm.