Thanks so much @vverner!
I tested with:
'taxonomy' => 'post_tag',
and
'taxonomy' => 'product_cat',
But is not working. Remember this is a WooCommerce product category…
Here are the other values:
'hide_empty' => true,
'meta_key' => 'series_one_work',
'meta_value' => '1'
Any other suggestion?
