Filter by Stock status not working

Hi,

I’m using this filter to manipulate the Stock Status of products:

add_filter( ‘woocommerce_product_is_in_stock’, ‘my_filter’, 10, 2 );

When I use your plugin to filter the products only to show “In Stock” products, it doesn’t work. All products still being shown. The “Out of Stock” products can’t be added to cart, only a “Read More” button, which is the correct behavior for “Out of Stock” products, but I expect that they’re not being shown at all at Shop or Category page.

Can you help?

Thanks.