I updated to macOS Mojave, why am I only seeing one result in scans?

Apple has updated how WiFi scan software can collect and display that information. WiFi Scanner is now required to have Location Services turned on.

Apple has updated how WiFi scan software can collect and display that information.  WiFi Scanner is now required to have Location Services turned on to be able to collect scan information.  It does not have to be app specific, Location Services must be enabled in general.