I think pictures speak more than a small description in the Bug Reporter.
http://s3.mmoguildsites.com/s3/gallery_images/668913/original.png?139056...
Left portion of the room should've gotten removed by Ghost Blocks. But as you can see it didn't, so we couldn't get to the enemies and we got stuck.
problem like this not really need to post in here because it just happen sometime except this bug happen everytime~
all you need to do is just log in > support > ingame support > call gm to help you fix bug