Search doesn’t show one custom field value

Hi. I’m designing a wordpress theme for a company website, therefore I’m using wordpress as a CMS. Posts in my theme are the company’s products and I added extra data to them through custom fields.

When the user searches for something, the search.php template page will generate an html table. Each row in this table is a product and each cell in a row is one custom field of that product.

The same behavior occurs when a user browses a category of products.

The problem is that if I search a product, the values of the custom field ‘size’ are missing for every product, whereas if I browse a category the values of that custom field for each product will be shown.

PS: I use for searches the plugin WP-Search-Everything, but I think it doesn’t matter since the problem was there even before installing the plugin.

Thank you for your help.