If you upgrade your Steinberg instrument content licenses i.e. in my case, Fractals, Granular Symphonies and Zero Gravity from the eLicenser to the Steinberg Activation Manager, these can no longer be seen in Cubase Pro 11 or earlier.
Meanwhile, Backbone users continue to be treated with utter contempt. If you don’t believe me look at the Backbone forum Latest Virtual instruments/Backbone topics - Steinberg Forums