Exception has been thrown while reading SSA via PowerShell

Hi,

SharePoint Server standard SP1 updated to June 2012 CU, 2 (WFE + App) servers + 1 DB server. I created Search Service Application (SSA) using Central Admin. Once created the SSA behaves pretty alright. It crawls and the searchadmin page is also normal.

But when I try to read the SSA via PowerShell:

$mySSA = Get-SPEnterpriseSearchServiceApplication -Identity "My Search Service App Name"

I get:

format-default : Exception has been thrown by the target of an invocation.
 
+ CategoryInfo     :  NotSpecified:  (:) [format-default], TargetInvocationException
 
+ FullyQualifiedErrorId : System.Reflection.TargetInovcationException,Microsoft.PowerShell.Commands.FormatDefaultCommand

No relevant clue from the App error event log. I can run other PowerShell commandlets just fine. For example Get-SPWebApplication.

Thanks, Soumya | MCITP, SharePoint 2010