Pathfinding frustrations

I have mostly been trying to get enemies to work correctly today. I tried many different forms of pathfinding, but couldn't get anything to work correctly. I tried to implement Breadth First search and AStar, but I couldn't get either of them to work right and just gave up in the end. I've mapped out (by hand) a navigation polygon instance and it still sort of works. Enemies "run away" from the player by trying to find the farthest tile on the map from them...not great, but it'll work for now...and possibly for the game.