In spectator mode, if you're on a specific point near a ladder and you press shift, the game won't let you descend. I know that it's because when you are on a ladder and you press shift you won't immediately go down, but it gets annoying when you have no-clip on. I don't know if anyone's reported this, but if it's a duplicate, don't just write duplicate as though you have nothing better to do with your life, it's annoying.