We have confirmed the following issue since the release of patch 3.5.
The issue is being addressed, and we ask for your patience and understanding as we strive to resolve this promptly.

[Known Issue]
Upon recruiting within the party finder tabs involving cross worlds, an issue wherein certain worlds may not appear on the list.

We apologize for any inconvenience and thank you for your understanding.

※Updated on January 17, 2016
This issue was resolved in the emergency maintenance held on January 17, 2017 4:00 a.m. to 4:15 a.m. (PST) for the party finder recruitment function.
We apologize for any inconvenience this has caused and thank you for your understanding.