CRD in Helm v3 Rancher Helm App ignored?

I have this CRD in the crds folder of the Helm v3 chart:

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ingressroutetcps.traefik.containo.us

spec:
  group: traefik.containo.us
  version: v1alpha1
  names:
    kind: IngressRouteTCP
    plural: ingressroutetcps
    singular: ingressroutetcp
  scope: Namespaced

But, upon setup of this chart in the Rancher UI I get the following error:

Failed to install app test-chart. Error: validation failed: unable to recognize "": no matches for kind "IngressRouteTCP" in version "traefik.containo.us/v1alpha1"

Which means, it doesn’t recognize my custom resource, which means the CRD is not loaded.

What’s the issue here and how do I solve it?

The chart is deployed from a catalog declared as a Helm v3 catalog in the Rancher UI.