We ran The Troll Bog QA today, after the new Mort AI changes.
There were a lot of mobs that stood around doing nothing.
We were going in with 8 people plus a pet, and highish levels, so there were a lot of spawns.
I first thought it might be a too many spawns problem, but at the end, the end boss just stood still doing nothing.
Apart from the mobs twiddling their thumbs, the QA worked fine.
I've looked into it and tried a fix.