Pro and Free version installed on a terminal server

I hope to find some help here, I tried contacting the Adobe support via chat but no one can understand what I am saying and they have been absolutely helpless as they don't know how to solve my issue.

We work on a terminal server and there are around 30 users on the server. Three users have an Adobe Pro license. I installed the Adobe free version on the server but as soon as one of the users with the Pro license logs in, Adobe becomes Pro for everyone and the users who don't need a license are prompted to log in and buy a subscription.

I don't want to buy 30 licenses so how can I have the Pro version and the free version installed on the same terminal server?

Thank you