Issue
Unable to delete some folders within Continuum, could the database be corrupt?
Environment
Continuum Cyberstation
Cause
This is a Default Class Folder that is being viewed.
Resolution
The Folder object in the screenshot is a Default Class Folder for the Folders in this tree. It is a system object automatically created by Continuum to help sort objects in folders into each object class. It is not actually duplicating the objects but just filtering them into a single view, you are unable to delete these default class folders but can delete all of the contents within this class folders...which are the original objects. Unless you actually want to delete the original objects then do not do this.
If you look at the Root of Continuum, you should see a list of different networks, folders, objects,etc. At the bottom of the tree view you will see a list of the default class folders for each of the classes of objects contained in the Root folder - this is just a filter.
All Default Class Folders can be identified by the "infinity" symbol shown on the folder icon. This indicates that these are not actually Folder objects in the database but are filters showing a specific object class.