I'm not sure if it's the same problem, but Jan fails to voice, "I'll stay here in case more of Rayford's guards come along." It's the last line spoken after freeing the Arrows. I've noticed it happens for both the sorcerer and the rogue, but I can't remember if it was the same for the brigand. I would expect so. I'm playing in linux, and it happened both through steam and the direct binary (QFI.bin.x86_64). I'm attaching a saved game right before. Just walk Roehm to the Arrows barracks. The file should be called "quiet Jan".