We have confirmed the following issue.
We ask for your patience as we proceed with investigations and a resolution.

[Confirmed Issue]

■ During the instanced battle “Hell's Kier (Extreme)”, certain mechanics may not proceed properly due to server load and heavy congestion.

* We have pinpointed the source and require additional time to analyze how the issue can be resolved. We will keep you updated and inform our customers as soon as there are any changes in the situation.

We apologize for the inconvenience, and thank you for your patience and understanding.

*Updated: Sep. 19, 2018 at 4:40 p.m. (PDT) / 23:40 (GMT) / Sep. 20, 2018 at 0:40 (BST)
This issue was fixed on Sep. 19, 2018 at 4:32 p.m. (PDT) / 23:32 (GMT) / Sep. 20, 2018 at 0:32 (BST)
We apologize for any inconvenience caused by this issue.