i think i have figured it about the monster AI if you are along with heros and henchies.
1. if they run off , dont follow let ur henchies and heros go after them.
they seem to stop for me just as they leave my aggro bubble and just stand there. hopefully this will make it not so tedius having to do all the chasing around. let me know if this works for the rest of you guys.
how to use the new monster AI glitch till its fixed
manitoba1073