Cubase 12 not seeing libraries

Downloaded sample libraries empty in Cubase Artist 12. Attempted multiple redownloads. Redownloaded Hip Hop Vault a few times. Clicked on .vst sound file and Download Assistant says “already registered” The file is in OXS/Hip Hop Vault - Content Set (optional). How do I install install these files so Cubase sees them. Thanks in advance
OSX 13.5.2