Query is not fully resolved in dashboard

I have a Simple XML dashboard which does

<form>
  <label>Admin Dashboard</label>
  <description/>
  <fieldset>
    <input type="dropdown" token="company" searchWhenChanged="true">
      <label>Select a Company:</label>
      <default>*</default>
      <choice value="*">All Companies</choice>
      <populatingSearch fieldForValue="Company" fieldForLabel="Co_Name">
        <![CDATA[ | inputlookup rich-co ]]>
      </populatingSearch>
    </input>
    <input type="time" searchWhenChanged="true">
      <label>Select a time</label>
      <default>
        <earliestTime>-7d@w0</earliestTime>
        <latestTime>@w0</latestTime>
      </default>
    </input>
  </fieldset>
  <row>
    <single>
      <searchString>sourcetype=completions_standard Company=$company$ | eval f=if("$company$"=="*","All Companies",Co_Name) | table f</searchString>
      <earliestTime>$earliest$</earliestTime>
      <latestTime>$latest$</latestTime>
    </single>
  </row>
  <row>
    <chart>
      <title>Last week's visitors to the Knowledge Centre</title>
      <searchString>sourcetype="logins_*" Company=$company$ | timechart dc(Username)</searchString>
      <earliestTime>$earliest$</earliestTime>
      <latestTime>$latest$</latestTime>
      <option name="charting.chart">area</option>
      <option name="charting.axisTitleX.visibility">visible</option>
      <option name="charting.axisTitleY.visibility">visible</option>
      <option name="charting.axisX.scale">linear</option>
      <option name="charting.axisY.scale">linear</option>
      <option name="charting.chart.nullValueMode">gaps</option>
      <option name="charting.chart.sliceCollapsingThreshold">0.01</option>
      <option name="charting.chart.stackMode">default</option>
      <option name="charting.chart.style">shiny</option>
      <option name="charting.drilldown">all</option>
      <option name="charting.layout.splitSeries">0</option>
      <option name="charting.legend.labelStyle.overflowMode">ellipsisMiddle</option>
      <option name="charting.legend.placement">none</option>
      <option name="wrap">true</option>
      <option name="rowNumbers">false</option>
      <option name="dataOverlayMode">none</option>
      <option name="drilldown">cell</option>
      <option name="charting.axisTitleY.text">Users</option>
      <option name="charting.axisLabelsY.majorUnit">10</option>
      <option name="charting.axisTitleX.text">Date</option>
    </chart>
  </row>
</form>

When I open the dashboard, both panels have the text

Search query is not fully resolved

Any idea what's wrong?