OmniVocal Not Allowed In My Cubase 15. Why?

According to the cool dude on all the C15 videos. I should have Omni. The installation went in OK. But get a message that it’s not available in this DAW

Not enough info. You DID specifically download & install the entirely-separate omnivocal application from the download area, right?

I also get this message (C15/W10) when I try to create OmniVocal as a Rack Instrument:

It seems that OmniVocal doesn’t work as a Rack Instrument, because there are no problems when inserting it into an Instrument track: