How to setParam of one of the move_base parameters if getParam function is working? [closed]

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Hello everyone,

I am currently struggling with the next problem: - I wrote a node in C++ that in its constructor I want to test if certain parameters of move_base exist and if they exist and have other values than I need for my application I want to change those values. My problem is that the test for the parameters is working, the getParam is working but when I try to set the parameters, with rqt_reconfigure and also in rviz i see that the param remains the same. - the piece of relevant code that I wrote is the following:

float costmap_global_infl_infl_rad;
if (nh_param.getParam("/move_base/global_costmap/inflation_layer/inflation_radius", costmap_global_infl_infl_rad))
{
    ROS_INFO("Got param: ../global_costmap/inflation_layer/inflation_radius");

    if(costmap_global_infl_infl_rad < 0.15)
    {
        std::cout<<costmap_global_infl_infl_rad<<std::endl;
        nh_param.setParam("/move_base/global_costmap/inflation_layer/inflation_radius", 0.15);
    }
}
else
{
    ROS_ERROR("Failed to get param ../global_costmap/inflation_layer/inflation_radius");
}

Do you have any suggestions? Thank you.