Mouse & Keyboard Support not working on xbox series x

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So i bought the game a couple of days ago but the controller control scheme seemed to me more complicated than the m&k original controls, I've been trying m&k connected before the bot up but the game only registers the keyboard or the mouse but not both at the same time, no matter what usb port i try for each. Is there any way to resolve this? maybe using an adaptor to connect both to one usb port?