When running a virtual standby or one time export, it fails with error message:
"PBM error occurred during PostProcessReconfigureSpec: pbm.fault.PBMFault. For more details open events on ESXi host/vCenter"
This issue occurs when Inventory service in vCenter is unable to query data after validation.
Related VMware KB article - Performing vMotion using VMware vCenter server fails with the error: pbm.fault.pdm.fault.summary.