After configuring my MX Keys Mini with a bluetooth connection and using the Logi Options+ software on a MacBook Pro, the keyboard and some buttons would not work correctly. I found that this was because the Mac config under System Preferences > Accessibility > Keyboard was set to "Enable Full Keyboard Access". When this is disabled, the problems with Tab and Spacebar not working correctly, were resolved. I don't know if this setting was added as a part of the installation of drivers and/or software, but it was very frustrating.