look at this topic
Run the new License manager with Admin Rights ! The FX License Manager starts , with the login to your account window
fill user name , press enter , fill password , press enter , after press login
go to the File Tab/Options/Preferences and change the Download Location if its needed !
after that go to the Products Tab/Open Download Ticked and locate your BFD3_Core_Library.fxfdownload File and the download begins to start for the Core Audio Library !
did the trick at least for me