To avoid the inconvenience incurred by unexpected login glitch, Third-Party Account Users are suggested using Cometid to login their accounts of the game as an alternative login method.
For Facebook users, please refer to the thread – http://forums.playcomet.com/viewthread.php?tid=2919&page=1&extra=#pid15091
For Yahoo users, please refer to the thread – http://forums.playcomet.com/viewthread.php?tid=2920&page=1&extra=#pid15092
The PlayComet Team