Same issue for Sith Assassin for the stealth bug. The encounters I noticed it on were those that had starting animations (rocket mobs flying in to the fight on Bal, sand people popping up from the group on Tat). If I hit the force cloak ability while these mobs were in transit they would behave as if I was fully visible. If I delayed the action until after they landed and engaged me I could club dance on their laps and they would not see me. I don't think this is working as intended unless they meant for the AI to have sporadic logic when engaging stealth characters.

I will have to admit the amount of nerd rage is getting to epic levels. Keep it up folks, I need some quality entertainment until my wave arrives!