I’m not sure if this is the right place to ask this question, but i’ve gone invisible more than a few times on the game. Because i did not want to be disturbed, i’ve had people come through on my screen with a join request to party. I have tried to replicate this by having a friend go invisible, and i try to join their party. I’ve clicked on their picture, and it gave no option. I clicked on their name in the guild window and it gave no option.
I even typed their account name.number in the join box and clicked join, and it failed as well. So is there some sort of glitch people are using to join invisible people, perhaps just to see if they are online or what? I’m completely curious.