[bug] when you first grab Minsc having Halsin swap out still bugs out locking your game in dialog
when you get this bug there are two work arounds;
kick a party member out before talking to Minc or tell Minsc to meet you at the camp... then go collect him from there

this bug is clearly caused by script error
[Linked Image from gog.com]

Luke Skywalker: I don't, I don't believe it.
Yoda: That is why you failed.