When going to the final fight against Soloman Grundy in Wayward Souls, the on screen instructions tell you to go to the Factor Floor of Monarch Playing Cards. The only issue is the teleporter labelled 'Factor Floor' is actually the level 21 mission where you fight Deathstroke, while the teleporter you are supposed to go to is labelled 'Grundy's Hideout'. I'll try to get up screenshots when I can. PS. I know it's not a bug, I'd say more of an oversight - but I may as well bring it to their attention. Can't hurt.