Did you ever find out what the problems was? I’m having similar isssue with my wave plug ins. I just downloaded updates to windows 7 and now most of my wave plug ins won’t show up. A couple of them do but these are newer ones I just purchased recently. The ones that are not showing up are all my Gold Bundle waves plug ins. I still have them on the CPU so I know they weren’t deleted but for whatever reason Cubase is not picking them up. This only happened once I ran updates to window 7. Thanks