Well, I guess it's what the title states. I've had some conversations, where the NPCs involved simply do not disappear, when the conversation is over.
Example 1: De'Arnise Keep Quest. Lastin steals, I interrogate him, pardon him and pay for his wife... errh, her medication, that is. The people involved, who are supposed to leave, leave... except for Lastin. He just stands there next to the Majordomo.
Example 2: Harper Hold Quest. I enter the slums, Reviane approaches me, she and Jaheira yammer back and forth, and Revianes group leaves. Except for a single Harper. He's just standing there straight south of the Copper Coronet.
Anyone ever experience anything similar? I mean, I never saw this stuff in the original.