I got it! And... It was my fault ( again

). In the constructor or AStar, I made a mistake in the limits of the map. Usually, I put a wall around the map so I haven't seen it before.
public function new(smap:String)
{
if (AStar.cst==null)
{
AStar.cst=new Hash<Float>();
AStar.setCost(".",0);
}
this.map=smap.split("|");
this.mxx=map[0].length-1; // the -1 were missing
this.mxy=map.length-1; // on this 2 lines.
this.opn=new List<ANode>();
this.cld=new List<ANode>();
}
You can update DecisionMaking.hx from GitHub or use the attached zip.
http://n3k4.whizkids.fr/dm-astar-3/index.html has been update (for testing purpose).
Can you confirm it solve the issue for you?
Another subjet: I was working with James Prestwood (Prestwood Animation Studio UK). He need to make a break for family reasons. So, I'll be available as teammate (for a couple of weeks). In the wait, I'm working on a personal project (iPad game). If someone need somebody (or have an emergency), it's the right time.
Hu... One more thing : In the 'Level1' scene of dm-astar-3, you can add Hunters. Just edit the scene and add some 'Hunter' actors on the middle of the tiles.