Grid Entries adding {{ _site_root }} to content .md file

Hi,

I have added a new grid everything seems to be working fine but its adding my content in a super weird format it has added single quotes around one of the text sections and {{ _site_root }} in front of the url when it was not doing this before. odd.

This then fails to render until I remove {{ _site_root }} and the single quotes on quote: and image:

client:
  - 
    image: '{{ _site_root }}assets/img/louis.png'
    alt: ""
    quote: 'bunch of text here'
    from: this is the recipient 
    date: "1"

reference is my fieldtypes

    client:
      display: Client 
      type: grid
      starting_rows: 1
      min_rows: 1
      max_rows: 1
      fields:
        image:
          type: file
          display: Image
          destination: assets/img/
          show_thumbnail: true
          allowed: [png, gif, jpg, jpeg]
          width: 20%
          resize:
            width: 1500
            height: 1070
            quality: 85
            upsize: false
        alt:
          display: Alt Text
          type: text
          width: 20%
        quote:
          display: Caption
          type: text
          width: 20%
        from:
          display: Description
          type: text
          width: 20%
        date:
          display: Active
          type: checkbox
          width: 20%