Trying to create a page for new editor using the REST API isn't consistent

curl -X POST \
  'https://instance.atlassian.net/wiki/rest/api/content?expand=body.atlas_doc_format' \
  -H 'Accept: application/json' \
  -H 'Authorization: Basic <my token>' \
  -H 'Content-Type: application/json' \
  -d '{
  "title": "Test Page",
  "type": "page",
  "space": {
    "key": "EC"
  },
  "status": "draft",
  "body": {
    "atlas_doc_format": {"value":"{\"version\":1,\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"Some text in a paragraph\"}]}]}"}
  }
}' 

 "body": { "atlas_doc_format": {"value":"{\"version\":1,\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"Some text in a paragraph\"}]}]}"} }

 "body": {
    "editor": {
      "value":"{\"version\":1,\"type\":\"doc\",\"content\":[{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"Some text in a paragraph\"}]}]}",
      "representation":"atlas_doc_format"
    }
  }