Martina Rivizzigno

please make sure that you get the message `INFO [ecl/EKF] 6076000: EKF commencing GPS fusion` before arming

@arnozeelmaekers - try to reproduce the failure with valgrind running. You can see [here](http://wiki.ros.org/roslaunch/Tutorials/Roslaunch%20Nodes%20in%20Valgrind%20or%20GDB) how to do it. Also build the global planner is debug mode `catkin config --cmake-args -DCMAKE_BUILD_TYPE=RelWithDebInfo...

It means that you're missing some required input data to run the planner. Check that you there is pointcloud pubished on `/stereo/points2`, a local position on `/mavros/local_position/pose` and check your...

have you installed `stereo-image-proc` as written here https://github.com/PX4/avoidance#local-planner-default-heavily-flight-tested ?

@hamishwillee - Your feedback would be much appreciated! Thanks!

This is not a bug, meaning that NAN in PX4 is a not controlled output. In the case of a land, PX4 doesn't control the z position but only velocity....