I've setup a Document Type to be used in a Grid Layout as follows

• Brand Colour (Colour Picker)
• Limit (Numeric)
• Filters (Tags)

Looking at the Grid Layout json, I can see that the property Filters has been set.

{
              "grid": 12,
              "allowAll": false,
              "allowed": [
                "button",
                "heading",
                "latestItems",
                "htmlBlock",
                "embedSnippet",
                "embedVideo",
                "imagePicker"
              ],
              "controls": [
                {
                  "value": {
                    "docType": "6b2b05ba-a3be-4e5a-bdb5-98a8628d45e9",
                    "value": {
                      "name": "Latest News",
                      "brandColour": "ffdc00",
                      "limit": "",
                      "filters": [
                        "Scotland"
                      ],
                      "filter": "Scotland"
                    },
                    "id": "218a99f2-a73b-447d-40ea-7363bb9ce7fd"
                  },
                  "editor": {
                    "alias": "latestItems"
                  }
                }
              ]
            }

Yet when trying to render the Document Type the property Filters never seems to have a value.

Model.HasValue("filters") is always false.

Any thoughts why this might be happening?