Mdash widget not updating from shadow

My shadow reported has all of the values being populated, however my widgets show nothing and the documentation leave a lot to be desired currently. my widget code is simple:

{
  "widgets": [
    {
      "key": "device_id",
      "title": "Serial Number:",
      "type": "value"
    },
    {
      "key": "fw_version",
      "title": "Firmware Version:",
      "type": "value"
    },
    {
      "key": "ram_free",
      "title": "Free RAM:",
      "type": "value"
    },
    {
      "icon": "fa-power-off",
      "method": "Sys.Reboot",
      "params": {},
      "title": "reboot",
      "type": "button"
    }
  ]
}

The key format has been updated recently - please check out the docs: https://mdash.net/docs/userguide/device-ui.md

yea, all good now, thanks!