Problem Importing KML/KMZ Files Results

I am generating radio propagation KML/KMZ files to overlay over terrain in SARTopo. The files load properly to Google Earth. But when loaded to SARTopo the XML is displayed in the left "Map Objects" pane with no display on the map.

I can provide the source KML or KMZ files on request. Below is a Lat/Long of the area I'm trying to overlay and the XML from the KML file.

Lat/Long:  39.28168, -105.08955

KML File:
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.2">
<!-- KML from CloudRF.com -->
<Document>
<Folder>
<name>0422172138_Spring_Poker_Run_22_P1</name>
<GroundOverlay>
    <name>144MHz 1W</name>
    <Icon><href>https://api.cloudrf.com/users/28783/0422172138_Spring_Poker_Run_22_P1.4326.png</href></Icon>
    <LatLonBox><north>39.66103</north><south>38.90233</south><east>-104.7102</east><west>-105.4689</west><rotation>0.0</rotation></LatLonBox>
</GroundOverlay>
<ScreenOverlay>
    <name>Colour Key - dBm</name>
    <Icon><href>https://api.cloudrf.com/users/28783/RAINBOW.dBm.key.png</href></Icon><overlayXY x="0" y="1" xunits="fraction" yunits="fraction"/>
    <screenXY x="0" y="1" xunits="fraction" yunits="fraction"/>
    <rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/>
</ScreenOverlay>
<Placemark>
    <name>0422172138_Spring_Poker_Run_22_P1</name>
    <description><![CDATA[<table><td><table border="1"><tr><td width="150">Frequency<td width="300" >144MHz<tr><td>RF Power<td>1W<tr><td>Tx Gain<td>0.89 dBi<tr><td>ERP<td>0.75 W / 28.751 dBm<tr><td>EIRP<td>1.26 W / 31.004 dBm<tr><td>Tx Lat / Lon<td>39.28168,-105.08955<tr><td>Tx Height<td>12f<tr><td>Input RF<td>1 W<tr><td>Tx Antenna<td>Beamwidth: 0&deg;<br>Azimuth: 0&deg; Tilt: 0&deg;<br>Polarisation: v<br>Gain: 0.89 dBi<br>Front/Back ratio: 0.89 dB<tr><td>Rx Height<td>1.5f<tr><td>Rx Sensitivity<td>-90dBm<tr><td>Rx Gain<td>2.14 dBi<tr><td>Modulation<td>CW<tr><td>Bandwidth<td>0.1 MHz<tr><td>RF model<td>1-2-1<tr><td>Resolution<td>30m<tr><td>Clutter<td>OFF<tr><td>Radius<td>20.3Mi<tr><td>Area<td>119.4 Mi2<tr><td>Coverage<td>24%<tr><td>File id<td>0422172138_Spring_Poker_Run_22_P1</table><td><img width='40px' src='https://api.cloudrf.com/users/28783/RAINBOW.dBm.key.png'/></table>]]></description>
    <LookAt>  
      <longitude>-105.08955</longitude> 
      <latitude>39.28168</latitude>        
      <altitude>12</altitude>             
      <range>20300</range>                         
      <tilt>0</tilt>                                  
      <heading>0</heading>                                 
      <altitudeMode>relativeToGround</altitudeMode>             
    </LookAt>                                                        
    <visibility>1</visibility>
    <Style><IconStyle><scale>1.0</scale><Icon>
    <href>https://api.cloudrf.com/API/archive/img/cloudrf.png</href>
    </Icon></IconStyle>
    <LabelStyle><scale>0.9</scale></LabelStyle>
    </Style>
    <Point>
    <extrude>1</extrude>
    <altitudeMode>relativeToGround</altitudeMode>
    <coordinates>-105.08955,39.28168,12</coordinates>
    </Point>
</Placemark>
</Folder>
</Document>
</kml>

Text (HTML) as displayed in the "Map Objects" pane:

<table><td><table border="1"><tr><td width="150">Frequency<td width="300" >144MHz<tr><td>RF Power<td>1W<tr><td>Tx Gain<td>0.89 dBi<tr><td>ERP<td>0.75 W / 28.751 dBm<tr><td>EIRP<td>1.26 W / 31.004 dBm<tr><td>Tx Lat / Lon<td>39.28168,-105.08955<tr><td>Tx Height<td>12f<tr><td>Input RF<td>1 W<tr><td>Tx Antenna<td>Beamwidth: 0&deg;<br>Azimuth: 0&deg; Tilt: 0&deg;<br>Polarisation: v<br>Gain: 0.89 dBi<br>Front/Back ratio: 0.89 dB<tr><td>Rx Height<td>1.5f<tr><td>Rx Sensitivity<td>-90dBm<tr><td>Rx Gain<td>2.14 dBi<tr><td>Modulation<td>CW<tr><td>Bandwidth<td>0.1 MHz<tr><td>RF model<td>1-2-1<tr><td>Resolution<td>30m<tr><td>Clutter<td>OFF<tr><td>Radius<td>20.3Mi<tr><td>Area<td>119.4 Mi2<tr><td>Coverage<td>24%<tr><td>File id<td>0422172138_Spring_Poker_Run_22_P1</table><td><img width='40px' src='https://api.cloudrf.com/users/28783/RAINBOW.dBm.key.png'/></table>