How to fix the situation of partition deactivation during automatic unloading from 1C to Bitrix?

Question

1C-Bitrix

Good afternoon.

After automatic unloading from 1c, a new section disappears (deactivates) in Bitrix ..
The section is created in the 1C unloading tree, goods are distributed, etc. ...

BUT! at the same time, if you run "Perform data exchange" on your own, then the section appears (activates) and the positions are unloaded as they should ... I

didn’t seem to change the settings, the sections that I had created before were placed without problems ...

What should I look for the reason for? help plz!