The inspectors in NodeCanvas currently do not show private fields (even if they have the SerializeField attribute). You could make the fields public, or use the [ExposeField] attribute to show them in the Object Editor (as well as all other NodeCanvas based editor).
I opted to not make private fields inspectable since they are private, however I do understand that this might be confusing since Unity does expose private fields when [SerializeField] is used, therefore I might change this to be the same with Unity’s behaviour.
Gavalakis
