Exchange agent is unable to run some powerhell cmdlets on Exchange 2010 SP2 host. Windows event log from the host describes specific cmdlet that failed to run.
One of the possible causes is that due to changes in security model in Exchange 2010, the uerID used by Exchange agent needs needs to be member of additional groups besides Domain Admins group.
Add the userID to below groups:
If the issue persists then please create a Support case for further investigation