What potential issue does a change of direction anchor pose?

A change of direction anchor can pose a significant issue by causing uneven load distribution. When a rope changes direction—such as through a pulley or a bight—it can create different tension levels in the lines being used for rescue or other applications. If not properly managed, this variable can lead to one side of the anchor being over-extended or overloaded while the other side experiences less tension, which can compromise the entire system's stability and safety. Ensuring evenly distributed load is crucial in rope rescue operations to prevent failure of the anchor and to maintain control over the load being managed.

Other options may suggest functions of the anchor, such as maintaining tension or minimizing friction; however, these are not the primary concerns with a change of direction anchor and do not address the critical aspect of load distribution that directly impacts safety and efficiency in rescue scenarios.