I upgraded my FMS Fed Master to 5.6.3, but my children were on 5.5.8. After this, all dashboards with alarms (Alarms, Agents, Hosts) had issues resolving the alarms. There was an errors on the screen
This issue is defined as FGL-13654 and is due to a new alarm type created after 5.6.0.
This issue will be resolved in the FMS 5.6.4 release
Issue is resolved in 5.6.4 (targeted for May 2012)