The request for this panel failed. The aggregations key is missing

Elastic Stack Beats
9

Sorry. The code i posted was not what I ran against my data. Here's what I ran:

PUT metricbeat-*/_mapping/doc
{
  "properties": {
    "DATAFIELDTOBEALTERED": { 
      "type":     "text",
      "fielddata": true
    }
  }
}

I ran this against the various fields the visualizations complained about.

I didn't reload the template from 6.5.1, so maybe that is an issue. I ran "GET _template/metricbeat" which returns a huge ~10K line template. That's what you want me to post? Finally, you're looking for the /var/log/metricbeat logs?