Logitech MX Master Mac OSX Mojave
Here I had found solution in the vast space of Internet. I hope that helps some of you. For me was a life saver. Annoying bug!
I had the same issue today. Very frustrating! There was a popup screen that came up and I inadvertently clicked deny which didn’t allow the Logitech Options Daemon to run. Once i enabled it and restarted my computer the mouse scrolling function worked again.
On your Mac…Go to
1) Click on the apple icon on the top left corner of the screen
2) Select System Preferences
3) Click Security & Privacy
4) Click Privacy tab
5) Click on Accessibility on the left hand side
6) Click on Logitech Options Daemon
(if it’s greyed out it’s because you have it locked…click on the pad lock on the bottom right of the little window to unlock it).
Hope that works for those who had issues!
