Clientside + Field validation + Entity Construction Kit

Hello Bros,

I created field validations for fields in a new Entity Type created with the Entity Construction Kit UI, but on the creation form of the entity, I can't see the validation in live. It work on save but not when I change the focus from text fields to text field. I see some, like the defaults ones like "Required", but not those I created in Field Validation.

How can I make it work ?