Failed to Update machine: failed to reconcile tags: POST https://abc.def.org/rest/com/vmware/cis/session: 401 Unauthorized in RHOCP 4

Issue

• Receiving the below error while creating a Machine:

54s         Normal    Create             machine/xyz-ocp-engg-1-chxx-worker-xx-8xx        Created Machine xyz-ocp-engg-1-chxx-worker-xx-8xx 
65s         Warning   FailedCreate       machine/xyz-ocp-engg-1-chxx-worker-xx-8xx        xyz-ocp-engg-1-chxx-worker-xx-8xx : reconciler failed to Create machine: VirtualMachine.clone task task-42205775 has not finished
24s         Warning   FailedUpdate       machine/xyz-ocp-engg-1-chxx-worker-xx-8xx         xyz-ocp-engg-1-chxx-worker-xx-8xx: reconciler failed to Update machine: failed to reconcile tags: POST https://abc.def.org/rest/com/vmware/cis/session: 401 Unauthorized

• The Machine stuck in a provisioning state:

$ oc get nodes
openshift-machine-api   xyz-ocp-engg-1-chxx-worker-xx-8xx        Provisioning