Eicar detection events for testing are seen when looking at the local SEP client logs and in the client user interface, but the data is not seen at the SEPM in reports or any other risk data.
By default we do not keep Eicar event data.
In the Symantec Endpoint Protection Manager console, check under Admin > Servers > select the database server > Click Edit Database Properties. Uncheck the option "Delete EICAR events".
This is likely checked, which would explain why we don't see it on the server.