Why doesn't Aliexpress Assistant fill in Color and Size for product specs when uploading products in yml?

Question

Yandex Market Language

I am doing the loading of goods on aliexpress, I made a file completely following their example. There are 2 parameters color and size, they should be the basis for the specification within one product.

What is highlighted in red remains empty. And the necessary parameters are transferred to separately created unnecessary parameters. Because of this, the system writes me an error that the specification does not have unique parameters.
The documentation says.

Some attributes are common to the product card, some define the SKU (color, size, memory capacity). The system will distribute them automatically

But this doesn't work correctly.

After uploading the file, the system prompts you to select the fields and I specify them.
Tried English and Russian names of flowers. Nothing has changed.

Parameters are set as elsewhere.

<param name="Color">Gray</param>
<param name="Размер">40</param>

Maybe someone has come across this. I don't have options.

Answer 1

At the third step "Check categories" you need to click "Comparison of characteristic values" and compare the necessary parameters