My friend is unable to chat on the server we play on. They recieved a message saying "Chat disabled due to missing profile public key. Please try reconnecting."
They have relogged and rebooted several times, and is not the only one, another player is also unable to chat for the same reason. I have also heard of others on other servers having the same issue, so I'm doubting it's the server as my friend was able to use chat yesterday