No parameters populated in humble and jazzy

[aharshac]

[WARN] [1732846795.865104345] [rqt_reconfigure]: Failed to retrieve parameters from node: asynchronous service call failed: the target node may not be spinning

The parameters of a node are not listed if:

1. Node was started before rqt.
2. Node was started after rqt, but the editor of that node was closed and some other node was selected. After this, no parameters are shown for all nodes.

But calling ros2 service call /teleop_twist_keyboard/list_parameters rcl_interfaces/srv/ListParameters shows:

requester: making request: rcl_interfaces.srv.ListParameters_Request(prefixes=[], depth=0)

response:
rcl_interfaces.srv.ListParameters_Response(result=rcl_interfaces.msg.ListParametersResult(names=['use_sim_time', 'start_type_description_service', 'stamped', 'frame_id'], prefixes=[]))