Trading offers in Bitrix - out of stock, but not always?

Question

1C-Bitrix

Good afternoon!
The problem is the following, I could not find answers in the open spaces, the essence is as follows:
There is a product with trade offers "Color" or "Size" or "Something else", even if the trade offers have positive balances or turn off quantitative accounting in Bitrix itself, then in the list of goods it will be like this -
BUT, it is worth adding at least one trade offer "Brand" to the same product, then a miracle happens -

Remarkably, in both cases, if you open the product itself, you can easily buy any trade offer and in any quantity no problem.