Has anyone successfully setup Harbor within Rancher and RKE2? I thought I had everything figured out but I randomly get the error

x509: certificate signed by unknown authority

It's difficult to give you tips just with that info, but Harbor is what we use the most at customers, and it's usually easy to deploy and run without any major issue. May you share the "export" helm chart section to see how the ingress is configured and how it's linked to the certificate?