Hi Alain,
I think your trouble is that neither of those 2 records has a complete list of alert problems. Once closed they disappear from Open and appear in Closed. There is another record indexed by the same problem identification number and includes Open and Closed alerts, the PrognosisAutomationProblem (PROBLEM) record. What do you think of that one if you create a display of it, make sure to apply a where clause like LINENO=1 to get 1 row per problem ID.
HTH