When looking in the End User (EU) dashboards in the FMS we can see all of the HTTP metrics for our hosts ("by Server IP" category) which are monitored by the FxM appliance, but not the HTTP 5xx metrics (e.g., HTTP 500)
The FxM agent is collecting these metrics but the Foglight topology is not being populated correctly.
This problems appears to affect both Foglight 5.6.2 and Foglight 5.6.4
Product defect EU-587 has been logged for this issue.
Fixed in version 5.6.5 of the EU-FxM cartridge (FxM cartridge for Foglight)