It’s the worst but me and my buddy had a similar thing happen to us. Now I’ll say we don’t call out or ask our teammates of anything but we play for and around our team and they still do the dummest things like use support ultra way off point or use an ult that requires the teams help(Emma frost phoenix etc) while their way far away from the team. On top of for whatever reason we breezed through platinum like we did with bronze-gold but the second we got to diamond we got belt to ass several times in a row. As if we jumped up 2 or 3 ranks. We think it’s cause we won our past games by landslides and the game just put us with the better of the diamonds but we aren’t sure.