Crash with second controller

Noticed splitscreen options in the menu so wanted to try getting it to work. Connected a second Xbox 360 controller, and the game crashed. Reloaded the game, loaded the world, moved around with the first controller just fine. Tried hitting a button on the second controller again and the game crashed. Did this a few times to test.

Finally, stayed in the menu rather than going into a world. Controlled menu just fine with the first controller. Immediately upon pressing a button with the second controller the game crashed.

In short: Any input from the second controller results in the game crashing with no error message, just straight to desktop.

Was looking forward to splitscreen on PC, so hope this gets fixed!