The "Sort by" layouts are built on the fly from the registry. CbB does build temporary layouts for the "Sort by" layouts. They are stored in the plug-in layout folder. The default location is %appdata%\Cakewalk\Cakewalk Core\Plug-in Menu Layouts. The path is specified in Preferences > File > Folder Locations.
After the reset did the message appear saying it created a log? If so, make sure you are looking at the current scan log. Does it indicate it ran to completion?
What paths are in the scan path?
What version of CbB are your using?
What version of the VST scanner? The default path to the Vstscan.exe is C:\Program Files\Cakewalk\Shared Utilities