In an effort to clean up stale topologies the delete-stale-objects.groovy" was run against every topology in the FMS database. This caused the services, which had not been modified in several days, to be removed. Once that occurred, no data could be brought up on either the the Hosts dashboard or the Agents dashboard (data was still be collected, it just was not being displayed).
The script should never have been run against the FMS services topologies.
1. Disable and enable these cartridges on Cartridge Inventory on the FMS