MoveIt! move_group plan function not returning [closed]

edit

I can't figure out what I am doing wrong that would cause this issue. I originally was just using the move() function but that wasn't returning either. I thought it had something to do with just running this in rviz and not really executing anything.

So I switched to plan() instead but found I was having the same issue. I've attached the barebones I've boiled this down to:

#include <ros/ros.h>
#include <moveit/move_group_interface/move_group.h>

int main(int argc, char **argv) {
    ros::init(argc, argv, "move_group_interface_demo");
    ros::NodeHandle node;

    move_group_interface::MoveGroup group("arm");

    ros::Rate rate(1);
    while (node.ok()){
        group.setRandomTarget();

        moveit::planning_interface::MoveGroup::Plan  plan;

        ROS_INFO("Planning");

        if(group.plan(plan)) {
            ROS_INFO("Planning Successful");
        }
        else {
            ROS_WARN("Planning failed!");
        }
        rate.sleep();
    }

    ROS_INFO("DONE");

    ros::waitForShutdown();
    return 0;
}

Like I said, I'm sure it's a careless mistake that I'm not seeing. I'm using the demo.launch file created using the MoveIt! Setup Assistant. I see the plan being visualized in RViz after the planning is initiated? But the function doesn't return in this simple node.

In the terminal I see "Planning" being printed but neither the successful or failure messages print after that.

Also, I can use the planners in MoveIt! just fine inside of RViz to "plan and execute".

Any ideas?