not hearing groove agent se drums

I’m sure this has been asked and I read some things about Mac but not yet about PC. I’ve been with Cubas from the beginning but have not til recently tried to use a lot of VST instruments. I’m not hearing groove agent se drums. I can see they are playing but there’s no audio. Other tracks are audible. So is there a well known answer to my question that I’m not getting? One button away, so to speak? Thank you