Why are products not displayed in subcategories in Opencart?

Question

opencart

Hello. OCStore version 2.3 I add
products to different sections under the same brand.
The category settings are the same (I assign categories to products in bulk via the Batch Editor).
But some products are displayed in subcategories, some are not. What's the magic?

For example, the site: echo-nvrsk.ru
Section "Materials for technique - Waxes"
In the admin panel like this -

spoiler

In fact - they are not displayed. The

cache was cleared, all products are set to "on", the categories were updated, the manufacturer was updated, without the Batch Editor it was updated.

What other options might there be? Can anyone come across this?
PS now noticed that the goods and sorted by "Manufacturer" (in this case, Renfert) are not displayed. The page itself opens, but it is not tied to either the manufacturer or the category.

Answer 1

So far, the display problem was solved simply by turning off autoload, because of it, not all products were loaded.