Adding Vulnerabilities via API

[ptrac3]

I hope this is the right place to ask and, if by any chance, you recognise I have missed something and/or this is not the right place to ask feel free to delete this message.
I was trying to add vulnerabilities the available documentation at https://docs.factionsecurity.com/Importing%20Your%20Vulnerability%20Templates%20Via%20the%20API/ by using JSON with the following payload:

curl -X 'POST'
'http://localhost:8080/api/vulnerabilities/default'
-H 'accept: application/json'
-H 'FACTION-API-KEY: API_KEY'
-H 'Content-Type: application/json'
-d '[
{
"Name": "This_is_a_test",
"CategoryName": "Unvalidated Input",
"Description": "Description",
"Recommendation": "Recommendation",
"LikelihoodId": 4,
"ImpactId": 4,
"SeverityId": 4,
"Active": true
}
]'
This request will result in the creation of the vulnerability but, as you can see from the screenshot, it will not include any of the details provided. Did I miss something?
I also tried changing the name of the parameters (in the web UI for example the Likelihood parameters is "Likelyhood") but it did not yield any successful results.