If you run a saved Search that is filtering on When, the results in the Change Auditor Client are different than what is shown when invoking the Search using PowerShell. The results from the Change Auditor client only returns the data applicable to the date filter used where as the results in PowerShell returns all results regardless of what is set as the When filter in the saved Search.
When running the Search through PowerShell the saved date filter in the Search is not invoked
Add the following parameters to the PowerShell command that correspond to the date filter you want to use:
-startdate and -enddate
