I am having similar problems. I tried to follow your suggestion but after I copy the files and go to Macintosh HD/Users/your user name/ there is no folder called Library so no sub-folders under my folder. Is there a fix for this? Thanks. Tom SHello Guys,
Finally I have found a permanent solution to this issue.
1.Copy All files from Macintosh HD /Library/Audio/Plug-Ins/Components/
2.Paste to Macintosh HD/Users/your user name/Library/Audio/Plug-Ins/Components/
3.Click on Replace All
Next time when you start logic it will scan all audio units only once and the scan wont reoccur in every subsequent startup.