Why are property values ​​not included in the search?

Question

1C-Bitrix

There is a field with the type "Binding to elements with autocomplete" - and for some reason this field does not participate in the search, or rather its values, even the checkbox sells "Property values ​​participate in the search:" How to be? The rest of the properties of the product (and there are many of them) - no problem, but here's the problem ... Please respond, who knows

Answer 1

Edit the infoblock, go to properties, click change property and then as in the screenshot