An update to the Logitech Option seemed to have affected the scrolling function of the Logitech MX Master 2S.

If you have the same issue with the scrolling i.e. it’s not working, the answer is simple. However, this “cure” is only for Mac users.

All you need to do is go to:

1. System Preferences;
2. Click on Security & Privacy;
3. Click on Accessibility; and
4. Check Logitech Options Daemon.

Whether you restart your Mac or not, it does not matter. But if it does not solve your issue, you should restart it to make sure that it’s not the system fault.

Your Logitech MX Master 2S should work now.