Bad tiles base URL (layer0)

[simon-contreras-deel]

I have instantiated a map with:

GET {HOST}/api/v1/map?config={"version":"1.3.0","stat_tag":"API","layers":[{"type":"cartodb","options":{"sql":"SELECT * FROM XXX","cartocss":"#layer { polygon-fill: #555000; }","cartocss_version":"2.1.0"}}]}&callback=XXX

And I have received:

{
  "layergroupid": "XXXX",
  "metadata": {
    "layers": [
      {
        "type": "mapnik",
        "id": "layer0",
        "meta": {
          "cartocss": "#layer { polygon-fill: #555000; }",
          ...
        },
        "tilejson": {
          "vector": {
            "tilejson": "2.2.0",
            "tiles": [
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.mvt",
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.mvt",
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.mvt",
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.mvt"
            ]
          },
          "raster": {
            "tilejson": "2.2.0",
            "tiles": [
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.png",
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.png",
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.png",
              "https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.png"
            ]
          }
        }
      }
    ],
    ...
}

But https://HOST/USER/api/v1/map/XXXXXXXX/layer0/{z}/{x}/{y}.mvt not works and I needed to use:
https://HOST/USER/api/v1/map/XXXXXXXX/0/{z}/{x}/{y}.mvt

As you can see, I have requested a mvt, and I dont check it with raster