however the meta box is correctly populate, but email and passwords fields are empty.
If I insert new values for email and password in these empty fields the values are not saved
Ah, I got it. Email and password are required to manually entered to update profile info. Perhaps only password is required, email should be auto filled. What do you think?
I am at this same junction if its possible to have a password to confirm the submission of changed user details. It would also be handy to append the form first rather than after the authenticated field.
I haven't done it yet. The current password field is used for updating, which is weird. I'll remove the email and password first. Maybe adding a password confirm is good idea.
Update: I've just released version 1.0.3 which doesn't show email and password fields for user profile form. If you want to include these fields, you can include a meta box id rwmb-user-info in the shortcode (you can change the position of the form to the bottom by putting this ID as the last one).
That works perfectly. also just realised you can also pull the other standard user meta in by using their keys (first_name or last_name).
Is it possible to use a MB helper function to retrieve data fields from the user table, like if one wanted to change s password or email in the user profile?