Final Cut Pro doesn't see the plug-in and/or showsh "Incompatible Audio Unit Found" error
Final Cut Pro could have a trouble with the first scan of iLok protected plug-ins run with trial license. In this case, it could blacklist them and it doesn't show them in its plug-in list.
It usually helps to make it rescan plug-ins with valid license activated. To do this, please follow these steps:
- Please make sure you have a valid license (trial or perpetual) activated to your iLok/machine location.
- Go To ~Library->Preferences and move this file to the trash: com.apple.audio.infoHelper.plist.
(Click GO from the Finder Menu Bar and hold OPTION to reveal the user's Library)
- Restart the computer.
- Empty the trash and re-launch Final Cut Pro X.
It should now find the plug-in as expected.