yes the print string is firing, also its not as much as it flies it just doesnt have gravity which could be messing it up.
Here is the video:
If your wondering why it stops moving after being far away it has an overlapping sphere that just stops movement if its too far away so its just a simple agro system.
also sorry for bad video quality and beeping it was just a random video software i downloaded for this, let me know if its not a supported format because idk if it is (its mp4)