Acrobat Pro in shared MS Azure VDI

Hi, all.
I've a question for you as per subject.

We have a customer which uses 2 balanced shared VDI in Azure, for 15 of its users (2 of them, except the above, have a dedicated VDI, with no problem).
Among these 15 users, 4 of them need to use Acrobat Pro (the rest of them need to use Reader). Another user with this need is one of the ones with dedicated VDI
We bought 5 license of Acrobat Pro and, for the one with dedicated VDI, we had no problems: he accessed, system downloaded setup file that installed Creative Cloud and then it opened Acrobat (previously Readr) as Pro.
So we tried the same with the first of the users with shared VDI: access, download of setup.exe and installation: in this case, since user isn't admin (differently from the 2 with dedicated VM), it asked for credentials we correctl y gave. Then it installed CC but, when it came to open Acrobat, it still was Reader, even with the user logged. We almost tired eveything (disconnect the user, reconnect, close completely the session) with no luck.
Anyone with this scenario? Any suggestion?
Thanks in advance!