Sometimes the webclient will fail to sync the inventory from the vcenter.
Restart the Services and try once. also check this KB article
VMware KB: Resetting the VMware vCenter Server 5.x Inventory Service database
Sometimes the webclient will fail to sync the inventory from the vcenter.
Restart the Services and try once. also check this KB article
VMware KB: Resetting the VMware vCenter Server 5.x Inventory Service database