Get position from Isometric TileMap

I really getting frustated about that, i cant get it to work… but in default TileMap(ex: topdown 2d) is working fine.

(get this code from internet)

get position and store in a dictionary:

tiles = new Dictionary<Vector3, WorldTile>();
		foreach (Vector3Int pos in Tilemap.cellBounds.allPositionsWithin)
			var localPlace = new Vector3Int(pos.x, pos.y, pos.z);

			if (!Tilemap.HasTile(localPlace)) continue;
			var tile = new WorldTile
				LocalPlace = localPlace,
				WorldLocation = Tilemap.CellToWorld(localPlace),
				TileBase = Tilemap.GetTile(localPlace),
				TilemapMember = Tilemap,
				Name = localPlace.x + "," + localPlace.y,
				Cost = 1 // TODO: Change this with the proper cost from ruletile
			tiles.Add(tile.WorldLocation, tile);

my test, click on tile and set color to green:

private void Update () {
		if (Input.GetMouseButtonDown(0))
			Vector3 point = Camera.main.ScreenToWorldPoint(Input.mousePosition);
			var worldPoint = new Vector3Int(Mathf.FloorToInt(point.x), Mathf.FloorToInt(point.y), 0);

			var tiles = GameTiles.instance.tiles; // This is our Dictionary of tiles

			if (tiles.TryGetValue(worldPoint, out _tile)) 
				print("Tile " + _tile.Name + " costs: " + _tile.Cost);
				_tile.TilemapMember.SetTileFlags(_tile.LocalPlace, TileFlags.None);

but this get other tile or none… plis help

Did you get any solution for this? @antoniomonteiro