Karlina wrote:
What's probably happening is that tailspin is hitting the critter and when all the other mobs are dead it goes after the critter because it's technically in combat with it.
This. AoE hits critters, and pets don't have damaging AoE anymore...
I have the same problem with my bear sometimes. Demoralizing Roar would hit nearby critters and my pet would go running off after it. Very annoying.
I usually just recall manually, but I believe that turning your pet to Passive fixes it too.