Can you please retest? We tested on the latest version of MacOS Catalina and all works now:
What has changed:
- macOS Catalina 10.15.5/10.15.6
- We released a new installer with signed Mac installation files (make sure to download the new version of the installer (V2020-8 or later).
To test, you can simply run the Demo-XType macro. It sends CMD+S to open the Save dialog, and then presses the ENTER key: