First, please try searching for "catalina" in this forum. Apple make some major changes in security starting with macOS Mojave, and more with Catalina.
And see this in the KM Wiki: Accessibility Permission Problem assistance
If you still can't run/trigger any Macro, then you can ask Keyboard Maestro itself for assistance by choosing Help ➤ Interactive Help menu.
If all of that does not solve your problem, then please upload an example macro and also a screenshot of its Macro Group details.
BEFORE you attempt the next fix, let's see what @peternlewis has to say.
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As the VERY LAST fix to attempt, you can try a reinstall of KM:
- Export All of your Macros somewhere safe.
- Backup these files in the KM Support Folder
~/Library/Application Support/KeyboardMaestro
- Keyboard Maestro Clipboards.plist
- Keyboard Maestro Clipboard History.plist
- Keyboard Maestro Dictionaries.sqlite
- Keyboard Maestro Macros.plist
- Keyboard Maestro Variables.sqlite
.
- Use an app uninstaller like AppDelete or AppCleaner
- Download a fresh copy of KM from Keyboard Maestro 11.0.2: Work Faster with Macros for macOS
- Be sure to install in your main
Applications
folder. - After you start the KM Editor, try creating a very simple macro to test.
- If that works, then import all of the macros you exported in Step
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1.
See: