Xbox 360 controller won't work anymore - used to work!

My Microsoft Xbox 360 controller won't work anymore on Minecraft, including the latest 0.13.1 version. This used to work just fine up to the latest 0.12 version.

The controller is fine: it is fully recognised in Windows. Within the device driver settings all buttons are recognised as well. Also, with other games the controller has no issue whatsoever, except for Minecraft.

Something has changed within the game, so please revert those changes. I'm willing to beta-test if necessary.