We created a new MC for disabling IPv6 & the pool for worker got degraded with below error

Worker:   pool is degraded because nodes fail with "1 nodes are reporting degraded status on sync": "Node de1tst-mks6d-worker-gt9ml is reporting: \"machineconfig.machineconfiguration.openshift.io \\\"rendered-worker-9961311705d874cd0eb6e50025e79c15\\\" not found\""

OCP v4.8

Reproducible with adding MC for worker node on OCP v4.8 cluster on customer env

~~~
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  labels:
    machineconfiguration.openshift.io/role: master
  name: 10-disable-ipv6
spec:
  config:
    ignition:
      version: 3.1.0
    systemd:
      units:
      - contents: |
          [Unit]
          Description=Disable IPv6 on all interfaces
          Wants=crio.service
          Before=kubelet.service
          After=crio.service
          [Service]
          Type=oneshot
          ExecStart=/bin/bash -c "for i in $(nmcli --fields UUID -t con show); do nmcli con modify $i ipv6.method disabled; done; systemctl restart NetworkManager"
          [Install]
          WantedBy=multi-user.target
        enabled: true
        name: disable-ipv6.service
~~~

1. Create the machieneconfig as above
2. Then, check the operator status

Not able to find the newely created rendered

Worker: pool is degraded because nodes fail with "1 nodes are reporting degraded status on sync": "Node de1tst-mks6d-worker-gt9ml is reporting: \"machineconfig.machineconfiguration.openshift.io \\\"rendered-worker-9961311705d874cd0eb6e50025e79c15\\\" not found\""

The MCP should progress with the new render created

They are using Cisco ACI. Initially they were facing issue with IPv6 not getting disabled by this Kbase[0]. So we suggested them doining manually using 'ipv6.method disabled' for the MC