Sorry you are still having issues. What happens when you click one of the Immersive plug-ins and select “Reset & Rescan select”? Are there any error messages or does it validate correctly?

Please try the following steps:

• Close Logic Pro X
• Make sure Finder is the active application
• While holding the Option key, click on the Go menu at the top of your screen and select Library
• Delete the following files from your User Library, if they are present:
  ~/Library/Caches/com.apple.audiounits.cache
  ~/Library/Caches/AudioUnitCache/
  ~/Library/Preferences/com.apple.audio.InfoHelper.plist
  ~/Library/Preferences/com.apple.audio.SandboxHelper.plist
• Then, open a Terminal window (located at Applications/Utilities/Terminal), and enter the following commands (type each command and press “Enter” afterwards):
  • killall -9 cfprefsd
  • killall -9 AudioComponentRegistrar
• Restart your computer
• Restart Logic Pro X