Well you see.. Nexon like most gaming companies probably splits their CA team into multiple teams to accomplish things. So no matter what they're working out bugs and developing the game at the same time.. Not ignoring something else to add a new feature. Game design is A LOT of work, takes a lot of time and takes a lot of money, so be understanding that they couldn't fix every glitch for every level within the months span between patches. It's a surprise they do so much in so little time.. just for people to complain they're not doing a good enough job