Why did my Xbox One Controller stop working with Steam?

I have a MacBook Pro running macOS High Sierra 10.13.4

I’ve been connecting an Xbox One controller wirelessly through Bluetooth to play games on Steam and it has worked fine. But recently, the Xbox controller no longer works with Steam. I can connect the controller fine and it recognizes that a an Xbox controller is connected when I go to the settings in Big Picture Mode. But it doesn’t actually let me control the menus in Big Picture Mode or control anything in-game. Not sure what has changed to cause the issue. The controller is not the issue because I have tried different other Xbox One controllers.

I did notice that these issues started to appear after I checked “Turn off on Big Picture Exit” in controller settings. I’m not sure if this is related to the problem or merely a coincidence. I’ve since tried it without that box checked.

I have updated Steam to the most recent build since this event, but the problems started(and continue to persist) before I updated Steam.

Xbox Configuration Support is on, Big Picture Mode is on, controller is recognized by Steam, but the problem persists.

Any reasons why I may be having this problem? Any possible fixes?

Update:

When I plug in the controller through usb it works fine.