Fixed nan exception

Assets/Scripts/Misc/NavPoint.cs

@@ -15,6 +15,7 @@ public class NavPoint : MonoBehaviour
     public float FlagDistance { get; private set; }
 
     [SerializeField] public NavPointType navType;
+    [HideInInspector] public bool isOcuppied; 
 
     [HideInInspector] public int PointId = 0;
     [HideInInspector] public float DeathAttr = 0;