I have worked on the A* Pathfinding actions for NodeCanvas (in review for asset store), so I can possibly offer some assistance in helping you, I was looking at doing some actions for Apex Path however I could not see how it improved on the existing A* Pathfinding project (Aron Granberg’s) so didn’t bother.
The basic principle will probably be the same, you will end up basically getting your path, iterating round the path waypoints then move to them.
As far as your error goes it sounds like you have the same blackboard in the scene twice, just make sure the component isn’t duplicated etc.
grofit
