With future plug-ins, it seems you’ll need to make sure your iLok License Manager is up to date or the program won’t scan properly.
Before installing any plugin update, please make sure your iLok License Manager is up to date:

Launch the iLok License Manager and go to the iLok License Manager menu (Mac) or Help menu (Windows) --> Check for application updates.

If you launched your DAW before updating the iLok License Manager, the new plugin might have been black-listed. Instructions on how to rescan for new plugins can be found here:
https://soundradix.freshdesk.com/support/solutions/articles/5000854403-how-to-scan-for-new-plugins-