[ovirt-users] VDSM Get Host Capabilities failed: Internal JSON-RPC error: {'reason': 'internal error: Duplicate key'}

We have 3 hosts in cluster. Two of them got rebooted giving is this error "VDSM Get Host Capabilities failed: Internal JSON-RPC error: {'reason': 'internal error: Duplicate key'}" Currently running Oracle Linux Virtualization Manager Software Version:4.3.6.6-1.0.15.el7 on the Hosts.