Unable to rsh into pod as MCP stuck in updating status

Issue

• MCP stuck in updating status when checked from ocp CLI:

[ocpuser@ocphost ~]$ oc get mcp
NAME     CONFIG             UPDATED   UPDATING   DEGRADED   MACHINECOUNT   READYMACHINECOUNT   UPDATEDMACHINECOUNT   DEGRADEDMACHINECOUNT   AGE
master   rendered-master-xxxx   True      False      False      3              3                   3                     0                      300d
worker   rendered-worker-xxxx   False     True       False      21             1                   1                     0                      300d

• Trying to rsh into pod return below error:

[ocpuser@ocpnode ~]$ oc rsh <pod_name> -n <project_name>
error: unable to upgrade connection: Unauthorized