I am using an mx master 3 via the usb dongle on my Macbook pro 2017 running 11.6 Mac OS Big Sur. I have two issues that I would like to report. 1, the reason that I am using the dongle instead of just bluetooth is when I connect via blue tooth the mouse is not recognized by the software. 2, I have to hold the control button on my keyboard to complete any of the mouses operations just as side scrolling between tabs in both chrome and safari, and switching between windows with the gesture button and a side swipe. any info or help would be appreciated thanks.