When exchanging 1C with Bitrix, is the main partition reset?

Question

1C-Bitrix

The regular exchange of 1C:Enterprise (8.3) and Bitrix (18.1.8) is configured according to the changes. The exchange is proceeding with the nomenclature, everything is going well, the goods fall into the right sections, the rest fly.

But with each change in the product, the link to the main section is reset, which is used to form the canonical address.


I did not find any settings either on the 1C side or on the Bitrix side. Tell me where to dig.