Face API recognitionModel can't be set

Question

I am developing a node.js backend that connects t Azure Face API, and until yesterday I was able to work around it with no problem, but suddenly without even changing my code I am unable to create a personGroup with a recognition model distinct to recognition_01.

Here is my code, which is almost copied from the docs, with the change that now the name of the personGroup must be given as a parameter instead of inside the JSON

await client.personGroup.create(uuid.v4(), 'PersonGroup1', { recognitionModel: 'recognition_04' });
let a = await client.personGroup.list();
console.log(a);

Here you get the response of listing the personGroups I have created with this code, as I said, this worked until yesterday:

[
  {
    name: 'personGroup1',
    recognitionModel: 'recognition_01',
    personGroupId: '11793675-144d-4f3a-af3c-929208d6b70b'
  },
  {
    name: 'personGroup1',
    recognitionModel: 'recognition_01',
    personGroupId: '20e6a52e-cfa0-4d9e-be93-7c7eddaeb7fa'
  },
  {
    name: 'personGroup1',
    recognitionModel: 'recognition_01',
    personGroupId: '65a45251-cf8f-4e54-aa90-46982fa054ac'
  },
  {
    name: 'personGroup1',
    recognitionModel: 'recognition_01',
    personGroupId: '7a5bb29d-bed1-4629-82cb-87884b4121b9'
  },
  {
    name: 'Prueba1',
    recognitionModel: 'recognition_01',
    personGroupId: '80326ce0-8c91-4736-a6a7-64a87defdac7'
  },
  {
    name: 'Prueba2',
    recognitionModel: 'recognition_01',
    personGroupId: '899375ef-245b-4771-b411-37cac74af4da'
  },
  {
    name: 'Prueba2',
    recognitionModel: 'recognition_01',
    personGroupId: 'a05a386b-e6e4-4d94-a310-6e747264ecd3'
  },
  {
    name: 'personGroup1',
    recognitionModel: 'recognition_01',
    personGroupId: 'a237a4e0-9bf4-445d-a641-4fc01d821979'
  },
]

EDIT: when I try to make a http put to the api directly with the recognitionModel in the body the same happens, even though it detects the rest of params I am sending inside the body, such as userData

If anyone can help, I'll be really grateful

Thank you!