Hi
I did the installation of the latest version 2021.06 without problems.
After running within Cubase PRO 11.0.30, I noticed some performance issues in the Avid Artist Control and Mix units. Sometimes the connection got lost, sometimes the response of the Avid Artist control touch buttons were very slow. (some seconds)
→ Rolled back to the previous version. Now all fine. 
Waiting for an update from Avid to solve these behaviour.