Getting x509: certificate signed by unknown authority Error after applying ClusterImagePolicy

[senanz]

I have installed policy-controller pod and it's running and in ready status:

Then created TrustRoot and CIP successfully:

The issue when i trying to run kubectl get CIP I'm getting this error:
Error from server: conversion webhook for policy.sigstore.dev/v1alpha1, Kind=ClusterImagePolicy failed: Post "https://webhook.ncms.svc:443/?timeout=30s": x509: certificate signed by unknown authority

image_policy.yaml:
apiVersion: policy.sigstore.dev/v1alpha1
kind: ClusterImagePolicy
metadata:
name: demo2
spec:
images:

• glob: "my-registry:5000/**"
  authorities:
• name : keyless
  keyless:
  trustRootRef: my-sigstore-keys2
  url: https://fulcio.mysigstore.dev
  insecureIgnoreSCT: true
  identities:
  • issuerRegExp: '.'
    subjectRegExp: '.'

Anyone face the same issue before?