Why NavLink Proxy does not work when one side is not in the floor?

I don’t know why this happens.
When one side is on the floor it works perfectly.
But if I move the side to a higher position it no longer works.
The arc is not renderedand and is not detected by the Pathfinding system (Watch video).

Does anyone know why this happens?
It can be fixed?

Thank you so much!!

Ok… i was testing and it does work in other place more near…
So i think maybe the problem is if the two points are too far away from each other.
It seems that the sides can only be separated a few meters.
I am right?
Or can that be configured somewhere?
I’ve been searching but I don’t see any settings for that.

Thank you so much!!