Encountered this issue earlier today in Exchange 2013 EAC when trying to track a message from one user to another.
error: failed to compare two elements in the array.
I thought I would then be able to do it via the shell, but get a similar error when running Search-MessageTrackingReport.
WARNING: An unexpected error has occurred and a Watson dump is being generated: Failed to compare two elements in the
array.
Failed to compare two elements in the array.
+ CategoryInfo : NotSpecified: (:) [Search-MessageTrackingReport], InvalidOperationException
+ FullyQualifiedErrorId : System.InvalidOperationException,Microsoft.Exchange.Management.Tracking.SearchMessageTra
ckingReport
+ PSComputerName : ********************
Does anyone have any insight?
This seems to happen with some users and mailboxes but not all.
Jahan De Silva