Bug Offline/Online player? [CLIENT]

So me and some of my friends have been playing URF, but we came onto a problem, see i was the owner/leader of the party,(invited them) then something weird happened, my friend on the right skodargc2 had some problems with the client offline/online stuff, so he restarted it, he had a 15 min quee ban which is ok because he missed the accept button because of the lag, but now it says he is offline, but he is online? I tried to give him the owner privilege and it worked normally, but in the friend list it says he is offline. later we played but this was weird jsut wanted to report it. There is no step by step on how to get this bug we just joined the room and it happend. Edit: it was eune server if it helps