Error with get-mailboxfolderstatistics after installing EX 2010 SP2 Rollup 5 v2

We have Exchange 2010 servers.  We also have a server that we have a bunch of scripts running on scheduled tasks.  After upgrading the Exchange servers to SP2 Rollup 5 v2, and then upgrading the server with the scripts to the same version, our scripts have started failing. 

One simple example is the get-mailboxfolderstatistics cmdlet.  It runs just fine on the Exchange server without error, but when the command is run on the server with the scripts, it results in the following error:

PS C:\psscripts> get-mailboxfolderstatistics jsmith
WARNING: An unexpected error has occurred and a Watson dump is being generated: Operation is not valid due to the current state of the object.
Get-MailboxFolderStatistics : Operation is not valid due to the current state of the object.
At line:1 char:28+ get-mailboxfolderstatistics <<<<  jsmith+ CategoryInfo          : NotSpecified: (:) [Get-MailboxFolderStatistics], InvalidOperationException+ FullyQualifiedErrorId : System.InvalidOperationException,Microsoft.Exchange.Management.Tasks.GetMailboxFolderStatistics

Any ideas?  Really need to get these scripts running again.

TIA 

Jim

Jim