get_terms with Redis Object Cache question

Question

By default, hide_empty => is set to be true. If Redis object cache is disabled, the below code works just fine. But when Redis is enabled, the empty term will not be hidden. It just shows all the terms. I have tried to flush the cache. The issue remains.

Any idea what may cause the issue? thanks

$parentid = 182;
$args = array(
    'parent' => $parentid
);
$terms = get_terms( 'product_cat', $args );

if ( $terms ) {
echo '<ul>';
foreach ( $terms as $term ) {
    echo '<li>';
        echo '<a href="' . esc_url( get_term_link( $term ) ) . '" class="' . $term->slug . '">';
        echo $term->name;
        echo '</a>';
    echo '</li>';
}
echo '</ul>';
}

Answer 1

I managed to solve it with term count

$parentid = 182;
$args = array(
    'parent' => $parentid
);
$terms = get_terms( 'product_cat', $args );
$count = count($terms);
if ( $terms ) {
echo '<ul>';
foreach ( $terms as $term ) {
        if ($term->count > 0){
    echo '<li>';
        echo '<a href="' . esc_url( get_term_link( $term ) ) . '" class="' . $term->slug . '">';
        echo $term->name;
        echo '</a>';
    echo '</li>';
}
}
echo '</ul>';
}