Logitech Options won't let me change the "Keystroke assignment" assigned to a mouse button anymore
Solution 1:
It seems to come down to accessibility.
- Made sure I had all of the latest software loaded,
- Found the Logi Options Daemon app inside the application in a Support folder - right click on the app and chose "Show Package Contents"; and copied it to /Library/Application Support/Logitech/Logitech Options
- Added the Logi Options Daemon app to Input Monitoring in the System preferences.
And finally when it was still not working… - Deleted Logi Options Daemon, and Logi Options from System Preferences/Accessibility; and then put them back.
- Restarted. Voilà.