EQEmulator Forums - no LOS to end path node?

I'm having some pathing issues with a new NPC, and am puzzled by what I am seeing. I sure hope someone familiar with pathing can set me straight.

PathManager::FindRoute(Vertex,Vertex) checks for LOS to the starting path node. OK, this succeeds and makes sense.

But then it checks for LOS on the end path node, and fails.

Code:

    if(ClosestPathNodeToEnd < 0) {

        _log(PATHING__DEBUG, "No LOS to any end Path Node within range.");

        return noderoute;

    }

At this point, noderoute is an empty list.

I was kind of hoping that pathfinding would allow me to find a route to a distant node out of sight. I could have swore that it did so. Am I
misunderstanding this?

The particular case in question is a large outdoor zone (moors) with the NPC starting in a low area. The target vertex is out of LOS. Most of the zone
is LOS.

The reason I am looking into this particular code is that my NPC is moving
forward and then warping back to its original position. I believe that the
server is sending it underground, and the client moves it back. In any
event CalculateNewPosition2 is called with the destination vertex
rather than a path node. (Since no route was found, since the destination
is not in LOS).

If I had LOS and there were no hazards, I would not need pathfinding. :???: