On the decorator node 'Does path exist" the only option for Observer aborts is None. Based on our documentation for the node it is supposed to also have Self, Lower Priority, and Both as options for Observer aborts.
Documentation Link: https://docs.unrealengine.com/latest/INT/Engine/AI/BehaviorTrees/NodeReference/Decorators/index.html#doespathexist
Results: None is the only option in the dropdown menu for Observer aborts
Expected: Dropdown menu shows None, Self, Lower Priority, and Both
Head over to the existing Questions & Answers thread and let us know what's up.