I had someone join my party a little while ago, but when i tried selecting that person via nearby characters or mouse-over, it would say that i could not select that characte. This a bug or was this a special account?

https://forum.pso2.com/topic/6170/there-are-people-who-can-not-be-selected-as-surrounding-characters (Not answered)

https://forum.pso2.com/topic/5917/random-people-unselectable-between-group-of-people

https://forum.pso2.com/topic/5758/player-unselectable-in-nearby-players-and-from-use-of-mouse