WotLK Random dungeon finder when locked out of all heroics

[stoogen]

Random dungeon finder won't let me queue up for dungeons anymore once I've been locked out of all heroics for the day. The game didn't used to be like this and you could queue for heroic 5 mans all day long, is this intentional or a bug?

[Barnir]

I would say its a bug.. but lets see if someone tell us more