Custom spawn points being ignored after changing vehicle id from default "ego_vehicle" (in .json file)

[AJK97]

Hi community!
While running the "ros2 launch carla_spawn_objects carla_spawn_objects.launch.py" and passing the spawn points as arguements, I find that once i change the vehicle id from "ego_vehicle" to any name for example, "hero", and pass "spawn_point_hero:=x,y,z,roll,pitch,yaw", the spawn point is randomized even though I passed in my custom spawn points. Once I turn the id back to ego_vehicle, it accepts the custom spawn points through "spawn_point_ego_vehicle:=x,y,z,roll,pitch,yaw".
any idea whats the issue?
CARLA 9.14
ROS humble