When 2 players lose near the same time.
When two players get knocked out near the same time sometimes the player that got knocked out first will be ahead the other person that was knocked out after in leader board.
Example: The person knocked out at 4th before the person in 5th will remain 4th when the person should finish in 5th.
That can screw MMR and LP because the dev said 4th and higher will gain more LP than 5th gaining little.