Hector_mapping RVIZ visualization showing everything but the map

edit

Hi,

So, this is an odd one. I got the following "good" visualisation of hector_mapping in RVIZ (http://i.imgur.com/lYppRzn.png (imgur link) because I need 20 karma to attach an image..) by running this simple launch file:

<?xml version="1.0"?>
<launch>
    <node pkg="hector_mapping" type="hector_mapping" name="hector_mapping" output="screen">

        <param name="pub_map_odom_transform" value="true"/>
        <param name="map_frame" value="map" />
        <param name="base_frame" value="base_link" />
        <param name="odom_frame" value="base_link" />

    </node>

    <node pkg="tf" type="static_transform_publisher" name="base_to_laser_broadcaster" args="0 0 0 0 0 0 /base_link /laser 100" />


</launch>

I must have changed something because when I re-ran re-ran the hector_mapping node and the visualisation I got http://i.imgur.com/yoiXaUy.png (this) - the base_link frame seems to be moving fine but I don't see the map (what was in grey on the first screenshot) anymore.

Any idea why the map isn't being displayed anymore?

Thanks in advance,

Ernest

Some extra info:

tf_monitor returns this:

 Frame: /base_link published by
 /hector_mapping Average Delay:
 0.0366189 Max Delay: 0.0540163 Frame: /laser published by
 /base_to_laser_broadcaster Average
 Delay: -0.0994484 Max Delay: 0 Frame:
 /scanmatcher_frame published by
 /hector_mapping Average Delay:
 0.0367215 Max Delay: 0.0540429

 All Broadcasters: Node:
 /base_to_laser_broadcaster 10.1691 Hz,
 Average Delay: -0.0994484 Max Delay: 0
 Node: /hector_mapping 80.7814 Hz,
 Average Delay: 0.0366702 Max Delay:
 0.0540429