EKS cluster AWSMachines not created because MachineSet pre-fight check fails

[tingchienc]

/kind bug

What steps did you take and what happened:
[A clear and concise description of what the bug is.]

Add a MachineDeployment for the EKS cluster deployed by CAPA
No errors in the capa-controller pods

But there is an error for the machineDeployment.

Error messages:
Message: Performing "Scale up" on hold because ControlPlane namespace/cluster-control-plane is provisioning ("ControlPlaneIsStable" preflight failed). The operation will continue after the preflight check(s) pass

After we set the annotation "machineset.cluster.x-k8s.io/skip-preflight-checks: ControlPlaneIsStable", the EC2 machines finally created.

The problem is why the preflight-checks fail? We don't want to add the annotation for every MachineDeployment.
And it seems like a new feature added in Sep by ClusterAPI.

What did you expect to happen:
EC2 machines created without adding the annotation

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Cluster-api-provider-aws version: latest
• Kubernetes version: (use kubectl version): 1.29.0
• OS (e.g. from /etc/os-release): ubuntu

[k8s-ci-robot]

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