Since upgrading to Solidworks 2020 a few months ago, multiple users have experienced Solidworks disappearing from their machines.  The installs were done via the admin image, which has also been unreliable in pushing out installs consistently (sometimes the install fails, other times the status never updates from "install scheduled)."  In some cases, Solidworks has disappeared after multiple installations on the same PC.  Any ideas what is causing this and how to stop it?