I'm trying to do the quest for Zamoshye about getting the guy in Smolensk to lower taxes. Upon speaking to the man, I first asked him about a special mission. His special mission was for me to raid a village, but I refused and I got -15 relations with him and the convo ended. I then spoke with him again this time about the taxes. I chose to try and pursuade him. At this point, the screen locked. I'm guessing this is a bug and not supposed to happen.