Gameplay - Tristana ult across the map

I was just in a ranked promo to gold and things were going somewhat ok, but my team was clearly on the losing side of things until I started to get fed.

Midway through the game as we are about to ace the enemy team, Tristana on the enemy team uses her ult and knocks 3 of us across the map (from dragon to up near baron).

This was the direct reason I lost my first promo series game because of this bug that has been around forever and still not fixed for whatever reason.