It may be working once all the redundant scan paths have been eliminated .
However, Adding redundant scan paths seems to be triggered by using the Reset, Rescan advice given so early on in the Platinum roll out.
Although I have background scan set there have been times where I've had VSTs not be recognised and therefore have to go in and reset, rescan. On further inspection I've always found redundant paths that were not previously there but contained plugins. Once I manually removed those paths all was good. But it begs the question How do the paths get there?
There's some fundamental problem that causes redundant paths to be added.