Yesterday I was hooking up my hay mower using the Hitch Assist feature. Everything was going fine. Using the buttons, I was moving the tractor backwards and forward, and moving the arms up and down. It was taking a bit longer than usual as I was having some trouble hooking up the PTO shaft. All of a sudden the tractor died. I started it up again and from then on everything worked as normal. Any ideas as to why the tractor died? Could the extended idling time have something to do with it?