Bug Navmesh path only returns 2 corners (start + end point)

No matter what, my Navmesh path only shows me 2 corners but the agents walks as expected (in a "zig zag environment" avoiding obstacles, turning, ...)
Based on Unity docs
I'd expect at least 6 waypoints in my scenario,
"Also known as "waypoints", the corners define the places along a path where it changes direction (ie, the path consists of a number of straight-line moves between corners)."

Code (CSharp):

1.         NavMeshPath path = new NavMeshPath();
2.         Vector3 p1 = agentStartPosition.position;
3.         Vector3 p2 = target.position;
4.         NavMesh.SamplePosition(p1, out NavMeshHit hit, 10, NavMesh.AllAreas);
5.         p1 = hit.position;
6.         NavMesh.SamplePosition(p2, out hit, 10, NavMesh.AllAreas);
7.         p2 = hit.position;
8.         NavMesh.CalculatePath(p1,p2, NavMesh.AllAreas, path);
9.         Debug.Log(corners.Length);
10.  
11. //trying to calculate from the agent
12.         agent.CalculatePath(p2, path);
13. Debug.Log(corners.Length);
14.  
15.         agent.SetDestination(p2);
16.  
17.        

I want to calculate a path from a start to an end position and set waypoints/checkpoints on the path.

So what could I do?

Thanks!!!

 

Wow...., after posting here I found that my Navmesh Obstacles had "carve = false" so that was the problem...

still curious, why could the agent walk properly? (because the calculated path was of course only a straight line...)