Have you also experienced the last year(s) or so that certain VST2 plugins are not found by Cubase anymore?
The worst thing about this is that when you load up an earlier song/project which contained this plugin, it will not find it, and when you choose the newer VST3, it becomes impossible to get the exact sound/preset that you once used in this song.
Some plugin vendors (Arturia, U-he, Roland, iZotope etc) has managed to make both their VST2 and VST3 visible - while others have not.
Is it the unique ID of these VST:s that is the answer to why some fails while others don’t?
For those vendors who have failed, would it be a difficult thing to fix?