title: Is there a fix for missing balloon content for a Google Earth placemark when opened from \\localhost\c$?
body: <p>Users have a Windows Folder Shortcut with a Target of \\localhost\c$\sub. When any kml or kmz file under that folder opens in Google Earth Pro, a selected placemark displays an empty description balloon. For example* this is how the clubhouse appears
  <a href="https://i.stack.imgur.com/05kmm.png" rel="nofollow noreferrer">clubhouse with empty balloon</a>
  *(from kml reference extended data example at <a href="https://developers.google.com/kml/documentation/kmlreference#extendeddata" rel="nofollow noreferrer">https://developers.google.com/kml/documentation/kmlreference#extendeddata</a>)</p>
  <p><strong>EDIT</strong>: Here's <a href="https://app.box.com/s/2mnug02al4nf7f0u8xl0b6nynct65tg2" rel="nofollow noreferrer">my file</a> and here's a <a href="https://developers.google.com/kml/documentation/KML_Samples.kml" rel="nofollow noreferrer">tut file</a> that displays the similar behavior for the placemark.</p>
  <p>This is the expected result --
  <a href="https://i.stack.imgur.com/ucFuZ.png" rel="nofollow noreferrer">clubhouse with description</a></p>
  <p>This is happening with all files on Google Earth Pro  7.3.3.7786 (64-bit) [Build Date July 21,2020 PM UTC; Renderer OpenGL; Microsoft Windows (6.2.9200.0)] installed on Windows 10 Pro Version 2004, build 19041.746.
  <strong>EDIT</strong>: Updated to Windows 10 Pro Version 20H2, build 19042.746, yet problem persists.</p>
  <p>I have tried all options in the Google Earth Repair tool, and recreating the windows file association. I tried changing the placemark description HTML from CDATA format to Extended Data pairs. I also tried adding the balloon visibility element to the placemark with as shown in the documentation --
  &lt;gx:balloonVisibility&gt;1&lt;/gx:balloonVisibility&gt;</p>
  <p>The balloon displays properly if the kml or kmz file is opened</p>
  <ol>
  <li>from a Network Folder mapped as \\localhost\c$\sub, or</li>
  <li>from the &quot;Local Drive (C:)&quot; subfolder of &quot;This PC&quot;</li>
  </ol>
  <p>Since my users will likely open the kml/kmz file from their File Explorer folder shortcut, is there some other way to force the HTML description to display in the balloon when opened that way?</p>