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@paulhastings0 Try this filter, it will sync user name on the fly

just paste this block of code in your template functions.php

`
/////////////////////////
///// To sync user names on the fly, it will show xprofile fullname of user
/////////////////////////
function wpi_sync_member_name($data) {
global $members_template, $bp;

#$firstname = xprofile_get_field_data( 1, $members_template->member->id ); // 1 = firstname > wp_bp_xprofile_fields.id
#$lastname = xprofile_get_field_data( 51, $members_template->member->id ); // 51 = lastname > wp_bp_xprofile_fields.id
#$fullname = $firstname .’ ‘.$lastname;
#return $fullname;

return bp_core_get_user_displayname( $members_template->member->id );

}
add_filter( ‘bp_get_member_name’, ‘wpi_sync_member_name’ );
`