Mediabay not displaying properly

In Cubase 11 Pro the main, full Mediabay window is not displaying the following on the File Browser column:
This Computer
Factory Content
User Content

The only thing displayed is VST SOUND. The curious thing is that all the items ARE displayed in the right hand side bar, the Loop Browser and the Sound Browser.

Anybody know how to fix this? I can use Favourites but I can’t set favourites in the main Mediabay window.