I use to see when someone join team, now I don’t, why?

actually that's not true for everyone. we wondered how people came and went willy-nilly without being seen in the chat and were told "chat's off". So we tried it. Doesn't work that way with everyone or every device. Some chats will show "so-and-so joined" but not left or the opposite. I finally made made joining a "request' and still even after granting the request the new player doesn't always show up in the chat ... though their chat is on because they said "hi". So who knows? PF doesn't work the same across devices