edit3: The below is likely to be incorrect; [Viktor appears to be the source of the crashes](http://boards.pbe.leagueoflegends.com/en/c/bugs/8AYqt8aR-viktor-games-with-viktor-crashing).
~~Entered a new game on the updated SR, and within 2 minutes received the "Attempting to Reconnect" message, followed by a brief game crash. Upon bringing up LoL again, I was surprised to find myself no longer in a game. Queuing up again, I was placed with many of the same individuals who had been in the game, all of whom had been disconnected in a similar manner.
(edit1) - Join a SR game.
- Wait 1-2 minutes
- Receive an "Attempting to Reconnect" message, which may or may not be followed by a game crash.
- Game no longer appears to exist.
edit2: Does not seem to occur in custom games~~