If the grid connection ever had a nodelink and was deleted,newly connected grids will not be considered by the agent

General Grid graph
1

I am working on GridGarph. Connect or disconnect node by Script.
If I Remove the Off-mesh link and the connect gridnode at same position, the agent can’t find connect .
the agent us Aipath and repath auto every 0.5s.

there is code connect node and create Nodelink2;

    void ConnectNode(GraphNode startNode, GraphNode endNode)
    {
        GraphNode.Connect(startNode, endNode, 1000, OffMeshLinks.Directionality.TwoWay); 
    }

    void AddLink2(GraphNode start, GraphNode end)
    {
        var link2 = Instantiate(_tempLinkPrefab);
        link2.transform.position = (Vector3)start.position;
        link2.end.transform.position = (Vector3)end.position;
        link2.Apply();
    }

        //remove 
        if (Mouse.current.rightButton.isPressed)
        {
            EndPos = Mouse3D.GetMouseWorldPosition();
            var node = _graph.GetNearest(EndPos).node;
            node.GetConnections(x => GraphNode.Disconnect(node, x));

            var offMeshLinks = AstarPath.active.offMeshLinks;

            var linkNode = offMeshLinks.GetNearest(EndPos,0.5f);
            if (linkNode.link !=null)
            {
                Destroy(linkNode.gameObject);
            }

            return;
        }

debugLink
debugLink1300×1800 183 KB

2

Make sure to only modify connections in a work item:

3

Hi,thank for reply so quick.
how about nodelink should modify in work item too?

4

The NodeLink2 comonent does not need to be modified during work items.
Any modifications to them will only affect the graph after the next update, though, since it internally schedules a work item.

5

I had try do this. it’s not fixed.

    void ConnectNode(GraphNode startNode, GraphNode endNode)
    {
        AstarPath.active.AddWorkItem(new AstarWorkItem(ctx =>
        {
            GraphNode.Connect(startNode, endNode, 1000, OffMeshLinks.Directionality.TwoWay); //单向
        }));
 
    }

and I find that if I Creat Link2 on other place and Destroy them, the agent will be find the path which there no find before.