I have the same problem. I created a game capture, set League of Legends as the game, and upon loading into the actual game (when on the main page of league of legends it works fine) it has a bugsplat. I tried following some advice online which involved turning on compatibility mode for league and running it as administrator. This prevented the bugsplat but when it ran, all that shows up is a black screen, despite using the game capture. Any ideas are appreciated.