mailchimp integration with CF7 doesn’t work

In /wp-admin/admin.php?page=mailchimp-for-wp-forms&view=edit-form&form_id=2
I have

<p><input type="email" id="mc4wp_email" name="EMAIL" placeholder="Your email address" required />
<input type="hidden" name="INTERESTS[b45c528]" value="One">
<input type="hidden" name="INTERESTS[53353b]" value="Lead">
<input type="hidden" name="INTERESTS[98284b]" value="On">
</p>
<p><input class="button" type="submit" value="Send" /></p>

On this form a signup will add the user with those types set.

In a CF7 form you add [mc4wp_checkbox]
ANYTHING JOINED FROM CF7 has NONE OF those fields set, making it completely useless unless I go manually add types to my list every day.