XBox One S Controller Not Rumbling

[Malkierian]

I've tried this controller both over bluetooth and with a wired connection. In the wired connection, it's registered as an XInput device, and so it "sees" the motors, but hitting test doesn't work. When connected over bluetooth, it doesn't even have any motors listed. However, they are visible to the computer, as I downloaded a testing app that was able to make the rumble motors run in wired and BT modes. Any help on this?