Sorry, just noticed you’d actually linked it in your original post!
I just know Netlify usually direct there, since the goal is to have customers self-solve and avoid their engineers debugging client sites, since it’s outside of their Scope of Support.
I couldn’t spot what you were doing wrong myself, but I don’t use Netlify Forms, and most of the people I see having issues with it are using systems like Nuxt where the forms aren’t in plain HTML for the Netlify post-processing to access.
Thanks @nathanmartin.
Well I know it was working, it’s weird.
I’ve made some changes that are not directly related to the forms and it’s not working anymore.
@nathanmartin I’ve found the solution : there was a fieldset element between my form tag and the input hidden form-name field (which is required with Vue/Nuxt). It has to be right after the form tag