From game manual:
Does the “disruption of Hanging” include disrupting robots that are going to hang (disrupt a robot while it is moving towards the hanging bar and it fails to hang) or robots that are only in the actual process of hanging?
In autonomous this would make the difference between a legal and an illegal disruption, because some robots would move directly towards the hanging bar at the start of the match, when the disrupting team, for example, throws a star over.