Dimensionist

I also have the same problem, though I haven't tested it yet to see if the problems extend beyond aesthetics.

During the quest Child of Five Suns, the first thing you have to do is speak to Agosti at the Vallian Embassy. When you enter the embassy and approach Agosti, Pallegina draws him into a conversation. However, the problem comes when your character has to pick a dialogue option - choosing to interject freezes the conversation, not allowing you to proceed with the game and forcing you to quit. The only thing you can do is to choose the 'stay silent' option, given the other two options break the game, which can lead to breaking the role-playing, depending on the character in question,