Since you were so nice to remove the "in progress timer", if people find themselves ending up in a fresh dungeon, they now simply logout when the dungeon starts, and after 5 minutes they get booted from the dungeon or by the party without a penalty what so ever instead of eating a 30 minute lockdown.

So please just get rid of the 30 minute lockdown, make it 5 or maybe 10 minutes at most and we wont have to waste time every dungeon at the start waiting for our Healer or Tank to vanish and be replaced again.

Right now you're better off dropping and requeue'ing if you lose your tank or healer, since no one joins in progress runs anymore once the Timer doesnt display anymore.