Thanks! Unfortunately, Unity’s native NavMesh system does not support 2D games. There is nothing I can really do to make the native NavMesh work with 2D games cause it’s totaly up to Unity’s implementation. You will probably need to get a plugin for 2D pathfinding from the asset store for that, like for example PolyNav: http://u3d.as/6n3 which is also supported by NodeCanvas. (sorry for the shameless promotion :))
Once again, it’s simply a restriction of Unity, unless I misunderstood the question completely.
Gavalakis
