AI Move To node

Using blue print node “AI Move To” node the destination parameter has a problem. When I reference any actor or enter the destination manually and “Z” is not 0 the AI does not move. the same if I reference actor that his Z is not 0 (in the sky) even if the “nav mesh bounds volume” cover that Z elevation value the AI also does not move, it moves only on x and y and z = 0.