Popup to home when machine running


I have noticed that if I startup the 1F, connect from a laptop and home it, when I check on the 1F display the popup asking whether to home is still there - not too much of a problem.

What I am concerned about is that if I start a job from the 1F screen and then connect from my laptop the popup appears. My assumption would be that the laptop screen should mirror the 1F screen, so why does the popup appear?

And what would happen if you accidentally hit Home while the job was running?