helix-query.yaml and query-index.json cann't update (EDS xwalk project)

I am currently working on the Universal Editor and xwalk projects.

Based on the official documentation at https://experienceleague.adobe.com/en/docs/experience-manager-edge-delivery/using/build/indexing and https://www.aem.live/docs/indexing-reference, I expected to retrieve the showbreadcrumb metadata from the pages by adjusting the helix-query.yaml file.

version: 1

indices:
  pages:
    include:
      - '/**'
    exclude:
      - '/**.json'
    target: /query-index.json
    properties:
      lastModified:
        select: none
        value: parseTimestamp(headers["last-modified"], "ddd, DD MMM YYYY hh:mm:ss GMT")
      robots:
        select: head > meta[name="robots"]
        value: attribute(el, "content")
      title:
        select: head > title
        value: textContent(el)
      showbreadcrumb:
        select: head > meta[name="showbreadcrumb"]
        value: attribute(el, "content")

However, the returned results still only contain the lastModified, robots, and path fields from before the modification:

{
  "columns": [
    "path",
    "lastModified",
    "robots"
  ],
  "data": [
    {
      "path": "/",
      "lastModified": 1757493202,
      "robots": ""
    },
    {
      "path": "/index/demo",
      "lastModified": 1777274695,
      "robots": ""
    },
    {
      "path": "/demo",
      "lastModified": 1777275721,
      "robots": ""
    }
  ],
  "offset": 0,
  "limit": 3,
  "total": 3,
  ":type": "sheet"
}

Is there any information or update missing from the official documentation? This configuration was working correctly when I tested it about six months ago.