Remove Email Validation checks on Edit Member and Frontend Edit Profile page to allow updating of User Fields.

remove-email-validation-on-certain-pages.php

<?php
/**
 * Removes the email validation checks on the Edit Member and Frontend Edit Profile pages.
 * This allows pending validation members to edit their own User Fields.
 * This is only needed if the "Restrict Fields For Membership Levels" option is selected.
 *
 * Add this code to your site by following this guide - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_email_bypass_validation_frontend() {
	global $pmpro_pages;

	if ( is_page( $pmpro_pages['member_profile_edit'] ) ) {
		remove_action( 'pmpro_has_membership_level', 'pmproec_pmpro_has_membership_level', 10, 3 );
	}

}
add_action( 'wp', 'my_pmpro_email_bypass_validation_frontend', 10 );

function my_pmpro_email_bypass_validation_backend() {
	remove_action( 'pmpro_has_membership_level', 'pmproec_pmpro_has_membership_level', 10, 3 );
}
add_action( 'admin_init', 'my_pmpro_email_bypass_validation_backend', 10 );