Can't get all author using WP_User_Query - wordpress

Question

I am trying to show all authors as well as the pagination of the result. So using bellow code it's not returning any users.
// Pagination vars
$current_page = get_query_var('paged') ? (int) get_query_var('paged') : 1;
$users_per_page = 12; // RAISE THIS AFTER TESTING ;)
$args = array(
'number' => $users_per_page,
'paged' => $current_page,
'role' => 'Author',
);
$users = new WP_User_Query( $args );
$total_users = $users->get_total(); // How many users we have in total (beyond the current page)
$num_pages = ceil($total_users / $users_per_page); // How many pages of users we will need
if ( $users->get_results() ) {
foreach( $users->get_results() as $user ) {
// $firstname = $user->first_name;
// $lastname = $user->last_name;
// $email = $user->user_email;
$author_thumb_url = get_avatar_url( $user->ID );
echo '<div class="col-md-6">';
echo '<div class="author-wrapper">';
echo '<div class="author-thumb">';
echo '<img src="'.$author_thumb_url.'">';
echo '</div>';
echo '<div class="author-description">';
echo '<h2>'. $user->first_name . ' ' . $user->last_name . '</h2>';
echo '<p>'. get_the_author_meta( 'description', $user->ID ) . '</p>';
echo '</div>';
echo '</div>';
echo '</div>';
}
}
?>
In args I have also used 'role' => 'author' and 'role__in' => 'author' but no result is showing.

Answer 1

Your loop might be incorrect. This is working for me. I also wrapper your columns in a row and container.
Try
// Pagination vars
$current_page = get_query_var('paged') ? (int) get_query_var('paged') : 1;
$users_per_page = 12; // RAISE THIS AFTER TESTING ;)
$args = array(
'number' => $users_per_page,
'paged' => $current_page,
'role' => 'author',
);
$users = new WP_User_Query( $args );
$total_users = $users->get_total(); // How many users we have in total (beyond the current page)
$num_pages = ceil($total_users / $users_per_page); // How many pages of users we will need
if ( $users->results ) {
echo '<div class="container"><div class="row">';
foreach( $users->results as $user ) {
// $firstname = $user->first_name;
// $lastname = $user->last_name;
// $email = $user->user_email;
$author_thumb_url = get_avatar_url( $user->ID );
echo '<div class="col-md-6">';
echo '<div class="author-wrapper">';
echo '<div class="author-thumb">';
echo '<img src="'.$author_thumb_url.'">';
echo '</div>';
echo '<div class="author-description">';
echo '<h2>'. $user->first_name . ' ' . $user->last_name . '</h2>';
echo '<p>'. get_the_author_meta( 'description', $user->ID ) . '</p>';
echo '</div>';
echo '</div>';
echo '</div>';
}
echo '</div></div>';
}
``