From what you've said here, my best guess is that your new controller is faulty. To verify whether this is the case, I'd recommend both of the following:

1. Test every button of your controller on other games to see if they do what they're supposed to.
2. Connect your controller to your PC and open the device manager, which will provide you with a visualization of your controller's inputs. The process to open this will vary depending on your computer setup, but it should be easy to do a search for.

Alternatively, the most recent patch did start the Xbox beta, so it might be possible that there's some code in there that is recognizing your Xbox controller and trying to treat it like you're playing on Xbox rather than PC? It's not impossible, but it seems much less likely than the controller just being faulty.