When the vacuum is mapping the "floor" no map is rendered.

Although the map is received, while Mapping Pass the areas the robot produces a "floor" MapLayer.
```json
"layers": [
    {
      "__class": "MapLayer",
      "metaData": {
        "area": 326575
      },
      "type": "floor",
      "pixels": [
``` 

There is no image floor rendered we need to confirm what is in the json data stored.
