I have also included specific language that addressed the fix and why it happened that I shared with a client earlier today too in the hope that this helps:
ADOBE CREATIVE CLOUD FREE TRIAL PATCH UPDATE
The problem is when you include the Creative Cloud Desktop Application it can think or appear as if you are a Named User which is why those users got the banner saying update to 2019 and then they experienced the same issues many of you appear to be experiencing. However, it seems like the bigger issue is that the new apps that were released are based on their Sensei technology and are going to be more in line with how Adobe XD was licensed, which was only in the Named User license packages.
Adobe is aware that you cannot have named user and device licensing on the same computer and when you include the "Creative Cloud Desktop Application" it can break the device package. There is some documentation that recommends deselecting it when creating the device package. I had a number of schools that had included that within their device package and all of them are having the issue. With your deployments - do they include the "Creative Cloud Desktop Application"? If so, that might be the culprit.