Cost Optimization dashboard report error

I have vcops 5 enterprise configured in my environment.  I followed the integration steps from the user manual by giving vCenter Operations User privilege to the vCenter Server user that was used for adding the vcenter server into chargeback.

However, When I tried to view the cost optimization report from dashboard, I get the following error message:

Next 30 Days Report:Unable to retrieve usage information for entity in VC:'vc_IP_Address'.
Next 31-60 Days Report:Unable to retrieve usage information for entity in VC:'vc_IP_Address'.
Next 61-90 Days Report:Unable to retrieve usage information for entity in VC:'vc_IP_Address'.
Cost Optimization Report:Unable to retrieve optimization information for entity in VC:'vc_IP_Address'

Any idea?

Thanks