Ophaned entries found in runtimestatusdetail12 table after Archive process performed in Cross database environment.
It means there are entries in runtimestatusdetail12 that have no corresponding entry in tasksession12_5 and event12_5 of runtime database.
Identity Manager 14.4 and 14.5 using cross database setup for Runtime and Archive databases - both Oracle and MSSQL.
Issue will be fixed in next Cumulative Hotfix after 14.5 SP1 CHF1.
If you can't wait please reach out to support to obtain hotfix.