EDIT: I can confirm after some testing that you can have DP load VST's through this method, though it takes FOREVER. Therefore you do NOT need to change the VST folder name, of you can change it back to normal if you go through the above steps, then select which VST's you wish to load through preferences. This will add a Audio Plugin Prefs file, which you'll need to keep so that all the plugins you desire will load after deleting the cache's. I suggest, however, not loading the VEP VST, because that's probably the issue, but since this is a Mac only problem just use the AU. The other methods described on other forums don't work unless I'm doing it wrong. It's a bad solution, but a solution nonetheless.
This solution does not work if you need to use Event Input.
I deeply appreciate VSL's long explanation of the situation.
**Leigh