Papyrus 6.7. perspective not listet in Eclipse 2025-03, but installed

Hello, last days I did a search for updates in Eclipse (I think I was on version 2024-09 at this moment) and installed them. Papyrus was one of it that was listet. But after I did the update, I have no chance to open the Papyrus perspective. It ist not listet in the list of perspectives.

To give a bit more information: I mainly use Eclipse for the SAP ADT and HANA Studio. After the update there where also erors in opening the ADT perspectives (ABAP). So I added the "ondemand" repository from SAP to the list of ressources. A check for update brought a newer version of ADT than in the original Eclipse repositories. I updated the ADT and they are working fine now.

But :-( Papyrus won't.

It is installed and funny how i can also open the Papyrus Help Contents. But no perspective listet.