Vertigo Strings Not Appearing in Halion

Have just downloaded and registered Vertigo strings but it’s not appearing anywhere when I open Halion. It seems to be saved to the right place. Anyone else had problems like this?

No problems here. But i remember that a long time ago there was a problem (which got a fix) in one of the versions of HALion where one of the libraries was not showing up… do you have all updates installed?