Interesting bug happened
Got into queue, got through champ select, game started and the new window appeared. Loading lasted a rather longer time than usual, then in game, chat commands would work improperly. Chat bar wouldn't appear, pressing the shortcut buttons for pings would send the wrong pings, and on multiple occasions right-clicking inside the fullscreen window would cause the computer to switch to the desktop. At the end of the game, the game window froze up and had to be forcibly closed, as it would not close on its own and was causing issues with attempts to click on the desktop.