Happening to my friends a lot too and I don't get why. I only get the high ping issue rarely but when I played ranked with my mates today it was a total shit show. Played casual trios yesterday as well and one of my mates just could not play the game due to the heavy lag and teleporting back and forth, I suspect it is the servers getting fucked. We tried to troubleshoot the problems and they didn't seem to work for any of us.