We did a trial last night. I was Crown. We completed the trial, I left the trial by using "P, T, E"....I was no longer in the group I was in, but was in a single group. I finally got back into my group by an invite from the leader of the group. I disbanded group last night before logging out and quitting game. Today that same character is in a single group again, I can't be invited to group, nor can I invite somebody into group. They get the message that that group is already full.