Catalina Users: The 64bit version of Studio Artist works with Catalina for Still Images but not Video. We expect a fix soon.

If you want to use Studio Artist for Video you will need to use the 32bit version (Included with the download) which runs on OS versions from 10.4.10-10.14 (Mojave).

Parallels: If you have updated to Catalina you can still use 32bit apps using Parallels.  You can read more here.

Dual-Boot Disk: Or you can create a dual-boot partition to run both Catalina and Mojave.  You can read more here.

We are working on a fix for this issue.