T-Window App doesn't run (wrong version?)

I ran the installer with Admin rights. Same when I tried opening the app from the Start menu and the Studio folder (C:\Program Files (x86)\SDL\SDL Trados Studio\Studio15).

The description of the app says: *Created a new Version 2.0.0.4 for Studio 2019 SR1. Could that be the problem? I am running SR2.

I am using Studio 2019 SR2 (15.2.0.1041) and  SR2 CU4 Beta 2.