I found out what you were referring to. You actually should be able to attack the switch with your hero, and that will let you out. Also the "appearing" next to the swordsman is part of the cinematic. I believe the game fades out anyway and you don't actually see him appearing beside the hero.
I did find a trigger though that for some reason was on. He loops a spell animation for whatever reason, but I fixed that. I just have to reupload, though i'm not sure it's worth redownloading just because of a looping spell animation lol.