We aware of an issue where some users lose sound when updating their installation of DPS on MacOS 10.14.6 and 10.15.6. My engineering team is aware of this problem and they are working on a solution.
Here is a link to DPS for Mac version 18.104.22.168 if you could please try rolling back to that version.
First, please uninstall DPS using the uninstaller program found in your Applications -> Bongiovi DPS folder then restart your machine. Then please install the older version and let me know the result.