clear_costmap_recovery is not clearing the map

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Hi,

I am using clear_costmap_recovery as the only recovery behavior with move_base. Although it is called successfully when the recovery behavior is activated, it is not successful in cleaning the costmap. I can verify this by both the robot behavior and the costmap on rviz. This forces me to call the clear_costmaps service of move_base which works.

I get a message:

[ WARN] [1446215670.032938465]: Clearing costmap to unstuck robot (1.000000m).
[ERROR] [1446215670.099599679]: Aborting because a valid plan could not be found. Even after executing all recovery behaviors

I do the following to load move_base:

<node pkg="move_base" type="move_base" respawn="true" name="move_base" output="screen">
     <remap from="/cmd_vel" to="/navigation/cmd_vel" />
    <!--param name="NavfnROS/default_tolerance" value="0"/-->
    <rosparam file="$(find experiments_launch)/config/costmap_common_params.yaml" command="load" ns="global_costmap" />
    <rosparam file="$(find experiments_launch)/config/costmap_common_params.yaml" command="load" ns="local_costmap" />
    <rosparam file="$(find experiments_launch)/config/local_costmap_params.yaml" command="load" />
    <rosparam file="$(find experiments_launch)/config/global_costmap_params.yaml" command="load" />
    <rosparam file="$(find experiments_launch)/config/base_local_planner_params.yaml" command="load" />
    <rosparam file="$(find experiments_launch)/config/recovery_params.yaml" command="load" />
    <rosparam file="$(find experiments_launch)/config/clear_costmap_params.yaml" command="load" />
    <rosparam file="$(find experiments_launch)/config/navfn_params.yaml" command="load" />
    <param name="controller_frequency" type="double" value="15.0"/>
    <param name="controller_patience" type="double" value="15.0"/>  
    <param name="planner_patience" type="double" value="5"/>
    <param name="recovery_behavior_enabled" type="bool" value="true"/> 
 </node>

I do load (successfully) one recovery with the recovery_params.yaml :

recovery_behaviors:

  - name: conservative_reset
    type: clear_costmap_recovery/ClearCostmapRecovery

and to load the behavior parameters (successfully) with clear_costmap_params.yaml :

conservative_reset:

  reset_distance: 1

I am sure is something stupid I am missing...so please help :)

Thanks, Manolis