End Game Nexus Animation Chokes
Whenever I end a game on the new clients the moment the Nexus explosion animation begins, the game chokes up and doesn't catch itself until after that animation finishes. This never happened on the old client, and my machine is not low end, it runs high specs.
While you're at it, I've also had some MAJOR particle effect issues pop up on the new client, where they just freak out and glitch all over the place.