Mini Dungeon Limit, theres a limit? xD

if you leave and reenter you go back to the exact same map you left instead of entering a random one (the map doesn't reset when you leave, though the timer does)

It probably puts you in the "first" open one, which would generally be the one you just left.


And yeah they don't reset when you leave, you can sometimes find someone's drops if you go in after they left.