Every time I enter combat with Jaheira in the party she does not get into combat until I have her manually attack an enemy. While everyone else is in combat I can move her around and all the enemies are like npc's for her (non hostile), the option to attack does not automatically appear. While this makes it so I can position her in a prime position after the fight has happened, it is also annoying when I forget to have her attack.
When I get her in the attack order her portrait is first yellow (isn't this neutral?, she should be blue?)
I wonder of this bug is related to the way she was recruited in Act 2. Playing the Dark Urge I was going to save the Last Light inn and Isobel but not knowing the outcome of a certain companions quest, Nightsong was speared. I went to last Light expecting everyone to be dead and Jaheira to be amongst them. She was not, she was fighting the shadow harpers. So I saved her. She acted like Isobel was still upstairs and everything was fine. I was expecting her to not show up after finishing the last boss in Act 2, but she was there and everthing was fine. But I'm thinking that this may be the reason she is like this in my game. She is still somewhat of an npc to my character.