See errors like below while clicking on particular server in USM.
An unknown error has occurred.
Refreshing your browser may resolve the issue.
com.firehunter.ump.exceptions.DataFactoryException : null
?at java.lang.String.valueOf(Unknown Source)
?at java.lang.StringBuilder.append(Unknown Source)
Duplicates were seen of this same server in cm_computer_system and USM.
This server was deleted from cm_computer_system and the discovery_server probe was restarted. On rediscovery of the server in USM the?error no longer occured.