Helm upgrade failure: Invalid value: "nginx": can not be set when the class field is also set

Issues
1

release.yaml

---
apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: dgraph
  namespace: dgraph
spec:
  timeout: 2m0s
  chart:
    spec:
      chart: dgraph
      sourceRef:
        kind: HelmRepository
        name: dgraph
  interval: 10m
  maxHistory: 3
  values:
    alpha:
      configFile:
        config.yaml: |
          graphql:
            introspection: true
          security:
            whitelist: 10.0.25.0/24,10.0.26.0/24,10.0.27.0/24
    zero:
      configFile:
        config.yaml: |
          security:
            whitelist: 10.0.25.0/24,10.0.26.0/24,10.0.27.0/24
    ratel:
      enabled: true
      image: 
        tag: v21.03.0
      configFile:
        config.yaml: |
          security:
            whitelist: 10.0.25.0/24,10.0.26.0/24,10.0.27.0/24
    global:
      ingress:
        enabled: true
        annotations:
          kubernetes.io/ingress.class: nginx
          nginx.ingress.kubernetes.io/ssl-redirect: "true"
          cert-manager.io/cluster-issuer: letsencrypt-prod
        tls:
        - hosts:
          - ratel.juptr.hg-prototypes.com
          - alpha.juptr.hg-prototypes.com
          secretName: dgraph-tls
        ratel_hostname: ratel.juptr.hg-prototypes.com
        alpha_hostname: alpha.juptr.hg-prototypes.com

When running the Helm Release, I receive the following error:

Helm upgrade failed: failed to create resource: Ingress.extensions "dgraph-dgraph-ingress" is invalid: annotations.kubernetes.io/ingress.class: Invalid value: "nginx": can not be set when the class field is also set

I am using Flux to manage my clusters and their apps. Cluster is EKS.