Understand why pictures from 1c are not attached to Bitrix

Have a nice day!

Given:
There is 1c, UT 11.4, there is an exchange node with the bitrix-business site, everything is unloaded.
The photo of the item is uploaded to 1c. Then uploaded to the site

Problem:
For some reason, not all pictures are attached to the nomenclature on the site, but only one.

For example, the nomenclature "screwdriver model XXX".
In the upload, you can see that 4 pictures were uploaded, but only one appeared on the site.

The task is to make sure that all its pictures are attached to the nomenclature on the site

For questions and suggestions - comments =)