Viewer 3.6 Search Widget: Click on search result, map is empty, only polygon selected

I used the Search Widget, not Robert's eSearch. It searches on my basemap layer, the result is correct. But when I click on the search result, only the polygon got highlighted, the map is empty/white. What could have gone wrong? I tried debug but it freezes today. Thank you for any hint...

The below is from my "config.xml".

<map wraparound180="true" initialextent="-13168303.122125 4000353.263855 -13158160.501175 4014157.475045"
fullextent="-13168303.122125 4000353.263855 -13158160.501175 4014157.475045" top="40"
addarcgisbasemaps="true">

<basemaps>

<layer type="dynamic" label="Streets" icon="assets/images/basemap_streets.jpg" imageformat="png8"
url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer" visible="true" alpha="0.49" />

<layer type="dynamic" label="Streets" icon="assets/images/basemap_streets.jpg" imageformat="png8" alpha="0.9"
url="http://babbit:6080/arcgis/rest/services/basemap/MapServer" visible="true"/>


</basemaps>
<operationallayers>

<layer label="Carsonbasemap" type="dynamic" visible='true'
alpha="0.5" url="http://babbit:6080/arcgis/rest/services/basemap/MapServer">
</layer>


<layer label="Aerial View" type="image" visible="true" alpha="0.28" url="http://coolcat/ArcGIS/rest/services/TIF_1Foot/ImageServer">
</layer>

<layer label="Street Roads" type="dynamic" visible="true" alpha="1.00" url="http://coolcat/ArcGIS/rest/services/StreetLabels/MapServer">
</layer>
</operationallayers>

</map>