Today I've done some ICC instances including ICC10m and have encountered some annoying mirror image problems.
For example in the first room of trash before marrowgar, anytime I popped mirror images at least one of them would run off straight toward a specefic patrolling unit every time, resulting in some unfortunate wipes.
Then later during the day I did the Pit of Saron heroic, while clearing the trash before the second boss, I pulled aggro and popped mirror images, again suddenly one of them runs off and ninja pulls the boss, wiping the group.
What the hell is going on with these things? I'm starting to grow hesitant of using mirror images.
Edit: What I'm interested in is if anyone else encountered problems with mirror images after 3.3.(not neccisarily ICC, I just didn't do any other instances since 3.3)