Fixed this. After installing and re-installing both Cubase 9 and all the VST, cleaning everything I went back and re-read the system requirements… Windows 7 Platform Update!!! That was the one. All working fine now 
Fixed this. After installing and re-installing both Cubase 9 and all the VST, cleaning everything I went back and re-read the system requirements… Windows 7 Platform Update!!! That was the one. All working fine now