SARM - Aggregation result a negative value for Memory usage

Hi,

I looking for understand why "-agg area -output agg=<filename>"  or  "-agg area -output iagg=<filename>"  or  "-agg area -output sagg=<filename>" option parameter for SARM result a negative value for Memory usage of areas like :

[1] Area : WORKFLOW on exclusive metrics

[1] Area : SRB on inclusive metrics 

[1] Area : SWEPAGE on exclusive metrics

[1] Area : SCRIPT on exclusive metrics and  inclusive metrics 

[1] Area : INFRA on exclusive metrics

[1] Area : SMARTSCRIPT on exclusive metrics and  inclusive metrics 

[1] Area : OBJMGR on exclusive metrics

[1] Area : FSM on inclusive metrics

For reference, we run SARM on AIX environment.

Any comments are welcome.

Thanks in advance.