Additional fields in a form?

[wc55]

How to insert an additional field (user) in a form?

I have additional fields:

But the fields don't appear on the form:

Is this a wrong configuration or is it a bug?

Should user fields appear on forms?

Version GLPI: 10.0.2

Version Fields: 1.17.0

Version Form Creator: 2.13.0-rc.1