Trados Studio 2019 responding very slowly when opening Project Settings

Hello,

I have recentlly installed Trados Studio 2019 on a new PC with Windows 10 and I am experiencing a problem when trying to open Project Settings: it takes very long (up to 10 minutes) to open (and in the meanwhile I can read "Not responding" at the top of the Project settings window).

I am experiencing this with projects from one particular client, whereas project settings for projects from another client open nicely.
On my old PC (Windows 7), for the same client, the opening could take up to a few seconds, but nothing like this.
I have tried disinstalling and reinstalling Trados Studio but nothing changed.

Has anybody experienced anything similar?

Thanks in advance,

Cristina