Fails to simulate process path

[jrgnicho]

This happened after merging pr #200,
Basically, after generating the three process paths for a single point cloud, clicking the "Next" button on the simple GUI fails to run the simulation. The console output at this point is the following:

[ WARN]: Client simulation request returned false;
[ WARN]: Client simulation request returned false;
[ WARN]: Client simulation request returned false;
[ INFO]: WaitToExecuteState start;

The demo launch file I ran is the following:

roslaunch godel_irb2400_support irb2400_blending.launch real_pcd:=true pcd_location:=/home/ros-industrial/ros/kinetic/godel_ws/src/godel_data/godel_point_cloud_data/surface2.pcd