Spatial Search in Here Data Hub not working

Question

I have created a space in Here DataHub and multiple features in it. The format of feature is -

{
"type": "Feature",
"id": "5mmUm99MMRp7TSfO",
"geometry": {
    "type": "Point",
    "bbox": null,
    "coordinates": [
        -2.960847,
        53.430828,
        0.0
    ]
},
"properties": {
    "@ns:com:here:xyz": {
        "space": "4XICUXLX",
        "createdAt": 1648724559819,
        "updatedAt": 1648724559819,
        "uuid": null,
        "puuid": null,
        "muuid": null,
        "tags": [
            "car",
            "sedan"
        ]
    },
    "featureName": "4b44eab9-d030-44b5-9330-66132766666b",
    "lon": 53.430828,
    "geometry": {
        "type": "Point",
        "coordinates": {
            "lat": -2.960847,
            "lon": 53.430828
        }
    },
    "lat": -2.960847
}

}

There are multiple features with these coordinates of lat and lon. I want to search for features in the spatial in a radius of x m. After executing spatial search APi result is empty, it contains no features - curl -X GET "https://xyz.api.here.com/hub/spaces/4XICUXLX/spatial?lat=-2.960847&lon=53.430828&radius=0&limit=100&p.lat=-2.960847&p.lon=53.430828" -H "accept: application/geo+json"

Result - { "type": "FeatureCollection", "etag": "\"b4ce422e09aaae1bb21bd51e8e3029bf\"", "features": [] }

When I search for features in general by property by calling search API -

https://xyz.api.here.com/hub/spaces/4XICUXLX/search?p.lat=-2.960847&p.lon=53.430828

Response is list of features having that coordinate -

    {
  "type": "FeatureCollection",
  "etag": "\"ce76cc9fbba2305d0f6c182237a6d316\"",
  "features": [
    {
      "id": "5mmUm99MMRp7TSfO",
      "type": "Feature",
      "properties": {
        "lat": -2.960847,
        "lon": 53.430828,
        "geometry": {
          "type": "Point",
          "coordinates": {
            "lat": -2.960847,
            "lon": 53.430828
          }
        },
        "featureName": "4b44eab9-d030-44b5-9330-66132766666b",
        "@ns:com:here:xyz": {
          "tags": [
            "car",
            "sedan"
          ],
          "space": "4XICUXLX",
          "createdAt": 1648724559819,
          "updatedAt": 1648724559819
        }
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -2.960847,
          53.430828,
          0
        ]
      }
    },
    {
      "id": "asojLXk2T8h1A0uR",
      "type": "Feature",
      "properties": {
        "lat": -2.960847,
        "lon": 53.430828,
        "geometry": {
          "type": "Point",
          "coordinates": {
            "lat": -2.960847,
            "lon": 53.430828
          }
        },
        "featureName": "e251e750-fcd0-484d-9c75-eda54601784d",
        "@ns:com:here:xyz": {
          "tags": [
            "car",
            "sedan"
          ],
          "space": "4XICUXLX",
          "createdAt": 1648722389306,
          "updatedAt": 1648722389306
        }
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -2.960847,
          53.430828,
          0
        ]
      }
    }
  ]
}

Can anyone please help me with what is wrong in the spatial API call/query? Why results are not coming in it?