I'm in the rat cave. I'm at the part where you shoot the wooden plank with an odoris crossbow bolt and have Arnaud lower it down... but then nothing happens. The rats don't go towards the Odoris bolt.

EDIT: Going to the main menu and restarting the chapter from the rat cave worked. Still, I looked in to this and this glitch has been present for at least 8 months. Do the devs actually bugfix this game?

EDIT 2: Finished the game, woo! Great story. That said I hope sooner or later the devs fix some of the bugs so that people can have a better experience.