Twofacednewt

I logged in for the first time with a friend who was going to pick me up at the Los Santos spawn but when I loaded everything and chose my character there was just a blank map with not my friend or anyone in sight. I was on the right server as we could both see the server chat but my actual map was completely blank except for my icon and I couldnt see a single player. Could anyone help or is there something that Im missing that I have to do?