My Mac Pro just died so I migrated to a MacBook Pro Retina. I was hoping to my Mac Pro would last until the new ones come out in 2013, but that didn't happen;-( I've been installing many plugins like Waves, FxPansion, Izotope etc etc etc - literally almost 1000 plugins, 4 days to authorize everything - nightmare.
During the course of my migration I had to delete and reinstall the VSL plugins a bunch of times, so after a while I stopped installing VSL and installed everything else, fixed permissions and finally reinstalled VSL again at the very end, and everything is fine until next time I install or delete something from my Plugins folder.
In normal times I get this issue maybe ponce a month.
This only happens to the VST and VST3 versions of Vienna Ensemble Pro (all versions) and Vienna Instruments Pro, not AU or RTAS. I've just noticed this over the the last 5 years on three of my systems so far. I mentioned it to you guys a long time ago, but nothing was ever resolved. I guess I must be the only one;-)
Usually if I install or update other plugins (anything) this just happens and I have to delete the VST plugins and reinstall. If I don't delete first, they remain folders. If I double-click those folders I can see the normal "contents" inside, but they won't work as plugins anymore and won't scan in Nuendo etc. I don't know why they are so fragile on my systems. I've been on Macs for the last 20 year and I know how to take care of them, so this is a real mystery to me.
If it's just, me it's no big deal. I have the installers handy so I can reinstall at any time when this happens, but if this rings a bell to you, let me know. I'll also be happy to help if you want me to test anything.
Best,
Jean-Yves