Cannot get all products in PHP using wc_get_products

I am creating a new plugin to WordPress, that uses data from WooCommerce.

I am having the following code:

$args = array(
    'limit' => -1,  // Attempt to fetch all products
    'return' => 'ids' // Fetch only IDs to optimize performance; remove this to get full product objects
);

$product_ids = wc_get_products($args);
echo "<pre>";
print_r($product_ids);
echo "</pre>";

This should display all the products I am having in my WooCommerce.
However, it only returns four of them.

I am also having the following code:

function dispProduct($id)
{
    $productArray = array(
        'product_id'       => wc_get_product($id)->get_id(),
        'name'             => wc_get_product($id)->get_name(),
        'sku'              => wc_get_product($id)->get_sku(),
        'price'            => wc_get_product($id)->get_price(),
        'stock_status'     => wc_get_product($id)->get_stock_status(),
        'total_sales'      => wc_get_product($id)->get_total_sales(),
        'regular_price'    => wc_get_product($id)->get_regular_price(),
        'sale_price'       => wc_get_product($id)->get_sale_price(),
        // Add more attributes as needed
    );
    return $productArray;
}


echo "<pre>";
print_r(dispProduct(620));
echo "</pre>";

This displays some data from product 620. However, 620 is not in the list, that displays my products, even though the product clearly exists.

When looking in WooCommerce, I can see I am having 9 products.
If I quick-edit one of those, that are not in the $product_ids array, and just hit the “Update” button, without editing something, the product will show up in the array, after a refresh.

Anyone having an idea?

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