Due to an issue with the server setting, the change in the status of the European data center was not reflected.

■Worlds that are currently Preferred World, although we had announced that they would be changed to Standard World.
Louisoix
Sagittarius
Spriggan
Twintania

■Worlds that are currently Standard World, although we had announced that they would be changed to Preferred World.
Alpha
Omega
Phantom
Raiden

The change in the status of the European data center will be implemented in the maintenance of patch 7.11.

We apologize for the inconvenience and thank you for understanding.