OK, thanks so much, I think we're getting to the rub of it. I don't see a VST3 version of Vienna Ensemble Standard. I've read the thread where a VE Pro VST3 version is described with the "III" in the name. But I don't find that in my installation of VE Standard. I installed that last summer, so I don't remember whether there was any option to install one that I might have declined, but I didn't have Cubase at the time so that might be possible. I've looked at the dll files and my two options are Vienna Ensemble (32 bit implied) and Vienna Ensemble 64.
W 10 i5-9600K 64 GB Synch - Woods, Brass, Perc I, Str Pro, Elt Str, Dua Str & Sordino, Prime Studio - Woods, Perc, Solo Str, Ch Str, Orch Str, App Str, Harps, Choir St Dim - Brass, Strings VE Pro, MIR Pro 3D, Vienna Suite Pro Cubase 14, St One 6, Dorico 5