Duty Finder queue bug, can reproduce everytime.

[MiniTofu]

1. After login into the game or character. Queue up anything as a healer, I get a complete queue available.

2. After finishing up the dungeon, I requeue again for a different dungeons.

3. This time I waited 20-30min and stuck at either 1/4 or 1/8 on the queue windows.

4. This is a bug.

5. Logout to my character selection screen and log back into the game.

6. Queue again the same dungeon I was stuck for 20-30min. 4/4, 8/8 BOOM, instance available!

So, I have to relog everytime before I queue up again. Why this is so painful?