We are carefully investigating the situation but finding the issue to be extremely difficult to pinpoint and require additional time.
For temporary measure, if players are experiencing this issue, there are 2 possible options in leaving the content. The first option is to stay in the content until the time expires and the second option is to have your character inactive for 10 minutes (this will result in a 30 minute penalty).
If players do not wish for the 30 minute penalty, we apologize for the inconvenience but please consider to force shut-down the game client.
Additionally, we would greatly appreciate your cooperation in providing feedback and details regarding this issue which can be sent to our official Bug Report Forums or Support Desk to help with our investigations.
Once again, we will continue to investigate this issue to be top priority.
We sincerely apologize for any inconvenience this issue has been causing, and thank you for your patience.