Relation widget not working properly


I have 2 collections, one of them is a list widget and the other is a ‘dropdown’ - basically a relation widget that is intended to let the user multiselect values defined in the list widget.
Here are the collections:
First collection, where I have a list widget to define blog tags:

  • label: “Blog pages”
    name: “blog”
    description: >
    Here you can edit the content of the blog listing pages (but not the blog posts themselves).
    label_singular: “Blog Page”
    folder: “content/pages/blog”
    create: true
    slug: “{{locale}}”
    identifier_field: locale
    • label: “Blog Tags”
      name: “blogTags”
      identifier_field: ‘blogTags’
      widget: list
      required: false
      field: { label: Tag, name: tag, widget: string }
      Second collection, which takes all the values from the list widget and displays them in a dropdown:
  • label: “:green_circle: Blog posts” # Used in the UI
    name: “blogpost” # Used in routes, ie.: /admin/collections/:slug/edit
    label_singular: “blog post”
    description: >
    Here you can add and edit blog posts.
    folder: “content/blogpost”
    create: true
    slug: “{{locale}}-{{year}}-{{month}}-{{day}}-{{slug}}”
    summary: ‘{{locale}} | {{year}}-{{month}}-{{day}} | by {{authorName}} | {{title}}’
    sortable_fields: [‘date’, ‘title’, ‘authorName’, ‘locale’]
    • label: Country
      field: locale
    • label: Author
      field: authorName
    • label: Drafts
      field: draft
    • label: Drafts
      field: draft
      pattern: true
    • { label: Tags,
      name: tags,
      widget: relation,
      collection: blog,
      search_fields: [ ‘blogTags’ ],
      value_field: ‘blogTags..tag’,
      display_fields: [ 'blogTags.
      .tag’ ],
      multiple: true,
      I attached a ss with the current relation widget:

What am I doing wrong?
Any recommendation is welcomed!

Thank you!

“gatsby-plugin-netlify”: “^5.0.1”,
“gatsby-plugin-netlify-cms”: “^6.11.0”,
“netlify-cms-app”: “^2.15.66”,

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Thanks, I will contact them!

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