I updated my C12 Pro to the latest version a couple of weeks ago and since the update I get an error message for Halion Sonic 7 when I launch Cubase. I’ve tried reinstalling through the Steinberg Download portal to no avail. I can access Halion Sonic 7 but not all of the content. I have attached a couple of screen grabs
If your Cubase Pro 12 license is the only one you own, you have the right to everything in the Cubase Pro 12 tab in the Dowonload assistant.,
Halion Sonic Collection is not part of that. Did you buy it?