Unable to create new user from Admin "New User" page ... Drupal 7 function MODULE_NAME_form_user_register_form_alter(&amp;$form, $form_state, $form_id) {
 $form['actions']['submit']['#value'] = t('Submit');
}


I override the name of the submit button using customs module. 

User registrations works fine, but when I'm trying to create a user through admin interface, fill out the form and click "Submit", I get redirected to "user/list" page, user doesn't get created, and the text on the top of the page is actually from "create user":

Any idea why this problem occurs?
This is a core bug. You can read about it here. What you can do is to translate "Create new account" string or use String Overrides module.