We're glad to announce that Patch 7577 has been released on Mar. 30th.
Note: You must be sure that the client is completely closed before patching, otherwise the patch may not be installed correctly and you won't be able to login the game.
Highlights of Patch 7577
Client Start Bug Fix
The bug that some player's client may disappear after clicking Start button is fixed.
We are sorry for the inconvenience this issue caused, your kind patience and understanding are much appreciated.