Change the expiration time for the wc_product_loop_ transient from 30 days to 1 day in WooCommerce on child sites.
Snippet Type
Execute on Child Sites
Snippet
add_action( 'setted_transient', 'mmx_wc_product_loop_transient', 50, 3 );
function mmx_wc_product_loop_transient( $transient, $value, $expiration ){
$pos = strpos( $transient, 'wc_product_loop_' );
if ( $pos !== false && $expiration == 2592000 ) {
set_transient( $transient, $value, DAY_IN_SECONDS );
}
}