user_id attribute in mb_user_profile_info shortcode

I'm trying to display a frontend form for user profile info editing (not for current user), as per documentation (https://docs.metabox.io/extensions/mb-user-profile/). However, even after setting user_id, this attribute does nothing, it always displays form only with current users' data.

my code:

$form = '[mb_user_profile_info id="user-data" user_id="' . $user_id . '" submit_button="Submit" confirmation="Your information has been successfully submitted. Thank you."]';
echo do_shortcode( $form );

where $user_id has value.

Why is this not working?