Hi adrianf,
I want to make sure I understand correctly:
- You have an old Mac running Mojave with Kindle 1.17.1 and Calibre 4. This setup is working successfully.
- You have a new Mac running Catalina.
- You want to migrate your data from your old Mojave Mac to your new Catalina Mac.
Is this correct? Once I understand correctly, I will suggest steps to take.
Also, does your new Catalina Mac currently have Kindle or Calibre installed?