The reason by which I open this issue it is due to the following problem:

I am using the motive software version 1.9, by which I have set up hover_swarm.launch as I show to below:
motion_capture_type: "optitrack_closed_source" # one of none,vicon,optitrack,optitrack_closed_source,qualisys,vrpn
object_tracking_type: "motionCapture" # one of motionCapture,libobjecttracker
send_position_only: False # set to False to send position+orientation; set to True to send position only
motion_capture_host_name: "192.168.0.102" pc with ubuntu 20.04
motion_capture_interface_ip: "192.168.0.100" # optional for optitrack with multiple interfaces pc with windows
save_point_clouds: "/dev/null" # set to a valid path to log mocap point cloud binary file.
print_latency: False
write_csvs: False
force_no_cache: False
enable_parameters: True
enable_logging: False
enable_logging_pose: True
On the other hand, in crazyflies.yaml I heve put
crazyflies:
channel: 80
id: 1
initialPosition: [1.5, 1.5, 0.0]
type: medium
I have looked if other users have had the same problem, but I have not found similar results.
I'd appreciate their help.