Context menu missing

Hi,

I've installed Acrobat Reader (latest version including the latest update) on an RDS (Windows Server 2019 Standard, fully patched and updated).

The regular AD users are missing the Windows Explorer context menu that says 'Print'. Printing works just fine, from Acrobat Reader as well as from any other applications. There's a default printer and all.

To rule out funky GPOs I've recreated the problem in a freshly installed RDS in an OU outside of any existing GPOs.

Users in the local admin group get the context menu, regular users don't.

What's going on and how can I fix it?

Thanks!