Error: Geometry field 'Shape' doesn' exist inside received feature

For the purpose of testing I created a very simple layer (footest) on GC2, with only two features. When trying to load this layer with leaflet-WFST, the following message is printed to console (for each feature).

I don't know enough about WFS to tell if the data returned by GC2 is in fact invalid or has data missing. It appears valid to me though, and I have had no issues importing the layer into QGIS. Can anybody tell if this seems to be an error in Leaflet-WFST?

Error message in console

Geometry field 'Shape' doesn' exist inside received feature: '<cubetown:gid xmlns:cubetown="http://companyname.admin.gc2.io/companyname/cubetown">35</cubetown:gid><cubetown:id xmlns:cubetown="http://companyname.admin.gc2.io/companyname/cubetown">45</cubetown:id><cubetown:the_geom xmlns:cubetown="http://companyname.admin.gc2.io/companyname/cubetown"><gml:MultiPoint xmlns:gml="http://www.opengis.net/gml" srsName="urn:ogc:def:crs:EPSG::3857"><gml:pointMember><gml:Point><gml:pos>2632472.43108 10411830.80244</gml:pos></gml:Point></gml:pointMember></gml:MultiPoint></cubetown:the_geom>', so feature will be skipped and won't be converted into leaflet layer

HTML/JS used for testing:

<html>
<head>
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"/>
    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
    <!-- <script src="https://unpkg.com/leaflet-providers@1.0.13/leaflet-providers.js"></script> -->
    <script src="https://unpkg.com/leaflet-wfst@2.0.1-beta.27/dist/leaflet-wfst.min.js"></script>
    <style> #map { height: 300px; width: 300px; background-color: #ccf; } </style>
</head>
<body>
<div id="map"></div>
<script>
var map = L.map('map', { center: [56, 10], zoom: 16 });

L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
    maxZoom: 19,
    attribution: '© OpenStreetMap'
}).addTo(map);

//https://services.datafordeler.dk/DAR/WFSadresser/1.0.0/WFS?username=LEIXDZQLOE&password=Lyngbakken.20b
var wfsLayer = new L.WFS({
    url: 'https://companyname.admin.gc2.io/wfs/cubetown@companyname/cubetown/3857',
    typeNS: 'cubetown',
    typeName: 'footest',
    crs: L.CRS.EPSG3857
}).addTo(map);

</script>
</body>
</html>

I inspected the data in the Chrome dev tool, and the two requests are listed below, together with the response data (pretty formatted).

WFS request 1 - DescribeFeatureType

Url: https://companyname.admin.gc2.io/wfs/cubetown@companyname/cubetown/3857?

Request payload:

<wfs:DescribeFeatureType xmlns:wfs="http://www.opengis.net/wfs" service="WFS" version="1.1.0">
    <TypeName>cubetown:footest</TypeName>
</wfs:DescribeFeatureType>

Response:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" xmlns:gc2="http://www.mapcentia.com/gc2" xmlns:cubetown="http://companyname.admin.gc2.io/companyname/cubetown" elementFormDefault="qualified" targetNamespace="http://companyname.admin.gc2.io/companyname/cubetown" version="1.1.0">
  <xsd:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/3.1.1/base/feature.xsd"/>
  <xsd:import namespace="http://www.mapcentia.com/gc2" schemaLocation="https://companyname.admin.gc2.io/xmlschemas/gc2.xsd"/>
  <xsd:complexType name="footestType">
    <xsd:complexContent>
      <xsd:extension base="gml:AbstractFeatureType">
        <xsd:sequence>
          <xsd:element nillable="false" name="gid" maxOccurs="1" type="xsd:int" minOccurs="0">
            <xsd:simpleType>
              <xsd:restriction base="xsd:string">
                <xsd:minLength value="0"/>
                <xsd:maxLength value="256"/>
              </xsd:restriction>
            </xsd:simpleType>
          </xsd:element>
          <xsd:element nillable="true" name="the_geom" maxOccurs="1" type="gml:MultiPointPropertyType" minOccurs="0"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  <xsd:element name="footest" type="cubetown:footestType" substitutionGroup="gml:_Feature"/>
</xsd:schema>

Wfs Request 2 - GetFeature

Url: https://companyname.admin.gc2.io/wfs/cubetown@companyname/cubetown/3857?

Request payload:

<wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs" service="WFS" version="1.1.0" outputFormat="text/xml; subtype=gml/3.1.1">
    <wfs:Query typeName="cubetown:footest" srsName="EPSG:3857"/>
</wfs:GetFeature>

Response:

<?xml version="1.0" encoding="UTF-8"?>
<wfs:FeatureCollection xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:wfs="http://www.opengis.net/wfs" xmlns:cubetown="http://companyname.admin.gc2.io/companyname/cubetown" xmlns:gml="http://www.opengis.net/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" numberOfFeatures="2" timeStamp="2023-08-31T18:00:46.000Z" xsi:schemaLocation="http://companyname.admin.gc2.io/companyname/cubetown https://companyname.admin.gc2.io/wfs/cubetown@companyname/cubetown/3857?service=wfs&amp;version=1.1.0&amp;request=DescribeFeatureType&amp;typeName=footest http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
  <gml:boundedBy>
    <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3857">
      <gml:lowerCorner>1110463.96214 7602459.27055</gml:lowerCorner>
      <gml:upperCorner>1110654.67555 7602513.46419</gml:upperCorner>
    </gml:Envelope>
  </gml:boundedBy>
  <gml:featureMembers>
    <cubetown:footest gml:id="footest.35">
      <cubetown:gid>35</cubetown:gid>
      <cubetown:the_geom>
        <gml:MultiPoint srsName="urn:ogc:def:crs:EPSG::3857">
          <gml:pointMember>
            <gml:Point>
              <gml:pos>1110654.67555 7602459.27055</gml:pos>
            </gml:Point>
          </gml:pointMember>
        </gml:MultiPoint>
      </cubetown:the_geom>
    </cubetown:footest>
    <cubetown:footest gml:id="footest.32">
      <cubetown:gid>32</cubetown:gid>
      <cubetown:the_geom>
        <gml:MultiPoint srsName="urn:ogc:def:crs:EPSG::3857">
          <gml:pointMember>
            <gml:Point>
              <gml:pos>1110463.96214 7602513.46419</gml:pos>
            </gml:Point>
          </gml:pointMember>
        </gml:MultiPoint>
      </cubetown:the_geom>
    </cubetown:footest>
  </gml:featureMembers>
</wfs:FeatureCollection>
<!--Array
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Company name removed

I have removed part of the URL, which reveals the company whose data I am working on. Otherwise the data above is unedited.

Flexberry / Leaflet-WFST