I went to camp to swap out Lae'zel for Gale. As soon as she leaves the party she can't be talked to. If I right click on her I get the option to pickpocket (not available unless hidden of course), to attack and examine. The mouse cursor doesn't change to a message box and trying to target her results in just moving to her location. I can interact with everyone else, just not her. It looks as if she is standing there drinking and talking with an exclamation point over her head. I loaded up a previous save with her in the party, went back to camp and had her stay in camp and again she could no longer be interacted with. I loaded up the save with her in the party again, had her head back to camp while not in camp and she left the party but remained in front of me. I returned to camp and she is not there, she is also unable to be interacted with again.
Not sure if this is related to the above issue, but when I tried to sleep while she wasn't in camp hoping that she might be there when I woke up, I crashed to desktop.