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Interestingly I was able to install the same chart using `helm.v3.Chart` -
```const metricsServerChart = new k8s.helm.v3.Chart (
  'kubesys-ms',
  {
    chart: 'metrics-server',
    version: '3.5.0',
    namespace: 'kube-system',
    fetchOpts: {
      repo: '<https://kubernetes-sigs.github.io/metrics-server/>'
    },
    values: {},
  },
  { 
    dependsOn: [cluster], 
    provider: cluster.provider 
  }
); ```
Can this be an issue in `Release` implementation, should I file an issue on GitHub?

You could try adding a longer timeout or set `skipAwait:true`  - which is the default for helm CLI (helm release blocks to make sure resources are created by default).

I am guessing the metrics server is taking too long to come up or not activating for some reason