I, an Archer, was just about to do the "Hunt 10 bandits" quest, so I left the town. After the cutscene, I drew my bow as the bandits closed in then fired a shot. Just as I was drawing my bow again, one of the bandits attacked and somehow broke my drawing arm. I headed back to Town and hoped that would fix it, but it's still broken. Loading the save doesn't fix it either.
It feels like he's doing a drum solo using an arrow. Also, starting over with a new Archer still didn't fix the problem.