[Admin] File destination not working

Hi everybody

I have this blueprint:

                type: file
                label: Image
                avoid_overwriting: true
                destination: 'user/test'
                multiple: false
                style: vertical
                - image/jpg
                - image/jpeg

Upload works. However, only in the current directory and not in the specified ( user/test).

What could be the reason?

Thank you very much!

[v1.6.0-beta.2 - Admin v1.9.0-beta.2]