Cannot remove VPP from inventory in DLUX

When deleting VPPs from the Inventory list in VPP tab from DLUX, nothing happens.

It seems that it returns "404 Not found", however the switch is present and registered.

By debugging in Chrome, it shows that the failed request looks like this:

Request URL:http://localhost:8181/restconf/config/network-topology:network-topology/topology/topology-netconf/node/controller-config/yang-ext:mount/config:modules/module/odl-sal-netconf-connector-cfg:sal-netconf-connector/MyVpp71
Request Method:DELETE
Status Code:404 Not Found
Remote Address:[::1]:8181

Response Headers

HTTP/1.1 404 Not Found
Access-Control-Allow-Origin: http://localhost:8181
Access-Control-Allow-Credentials: true
Access-Control-Expose-Headers: location
Content-Type: application/json
Transfer-Encoding: chunked
Server: Jetty(8.1.19.v20160209)

Request Headers
DELETE /restconf/config/network-topology:network-topology/topology/topology-netconf/node/controller-config/yang-ext:mount/config:modules/module/odl-sal-netconf-connector-cfg:sal-netconf-connector/MyVpp71 HTTP/1.1
Host: localhost:8181
Connection: keep-alive
Content-Length: 2
Accept: application/json, text/plain, /
Origin: http://localhost:8181
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/53.0.2785.143 Chrome/53.0.2785.143 Safari/537.36
Authorization: Basic YWRtaW46YWRtaW4=
Content-Type: text/plain;charset=UTF-8
Referer: http://localhost:8181/index.html
Accept-Encoding: gzip, deflate, sdch
Accept-Language: es-ES,es;q=0.8,en;q=0.6,gl;q=0.4
Cookie: JSESSIONID=7ipnq5tekjb81bal5x7rhs3i1

Request Payload
{}