Halion Sonic is not opening

I have the latest version of the Halion Sonic (Halion Sonic 7) and Cubase 13 Pro.
Here my problem: Everything works except for opening Halion Sonic 01, which simply does not appear (even when I click on the keyboard) when I right-click on “Open instrument” and then on “Halion Sonic”. Halion Sonic 02 and the Avenger can all be opened. What can I do to get Halion Sonic 01 to open normally?

Hi and welcome to the forum,

It looks like the window is open. Isn’t it hidden behind any other window?

Are you on Windows or Mac, please?

Wow, thank you very much. It was just hidden in another screen i never used… Thanks!