Comentário oficial
Hello Alan,
Sorry to hear that you have issues in both 4.2.0b and c.
Will you please create an inquiry from the link below?
https://rekordbox.com/en/support/inquiry.php
Engineers would like to see the database to sort out your problem.
The Forum is not a good place to communicate with our engineers.
Thank you very much for your kind cooperation.
Best regards,
CRM, Pioneer DJ