One of the members of my team was complaining that most of the right-hand side of his screen was no longer visible since the update. It turned out he was signed on via Kongregate, so I suggested that he should unbind his account, since my unbound account (I used to come in via Armor Games) didn't have the cropping problem.
He clicked "unbind" and entered an email and password, but it came back with a message saying there had been an error and now he says he can't log in at all. I've made sure he's using the main game url and not his old Kongregate url, but it just won't let him access his old hero.