The custom gesture to switch between desktops while holding the button is not working. Only that one. The other features like app expose, launchpad, and others, work properly with the custom gesture but the one I mentioned don't. Also, when I connect my MX Master 3 thru Bluetooth on the Options+ the mouse appears as "inaactive", but as soon as I connect it thru the USB-A dongle it works. This means that all my custom buttons and settings dont work while on Bluetooth. I don't know if it's the Options+ app or what.