View_index_metadata doesn't allow indices:admin/get (solved)

Elastic Stack Elasticsearch
1

How should I grant permissions for GET index (https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-get-index.html).

From the docs I expected that view_index_metadata should do this. I can search the index OK, but GET index gives an error. What am I doing wrong?

GET index-that-exists
{
  "error" : {
    "root_cause" : [
      {
        "type" : "security_exception",
        "reason" : "action [indices:admin/get] is unauthorized for user [_anonymous]"
      }
    ],
    "type" : "security_exception",
    "reason" : "action [indices:admin/get] is unauthorized for user [_anonymous]"
  },
  "status" : 403
}

Elasticsearch 6.6.0, elasticsearch.yml:

xpack.security.authc:

  anonymous:
    roles: anon
    authz_exception: true

  realms:
    native:
      type: native
      order: 0    
    file:
      type: file
      order: 1

roles.yml:

anon:
  cluster:
    - monitor
  indices:
    - names: '*'
      privileges:
        - monitor
        - view_index_metadata
        - read
2

I found this was because the roles.yml config was not mirrored on the other node of the cluster.