Why are the properties not showing up in the order?

Question

1C-Bitrix

Hello. I'm literally running out of patience :))) Properties are not displayed in the order. For example: Article - displayed in the product card, displayed in the basket, displayed in the ordering process. In the order itself, the SKU field is included, but it is empty. The same applies to other fields. Only price, quantity, amount are displayed. Where to dig? Maybe I don't know something? ))