Zend certified PHP/Magento developer

Magento 2.4.3 Stock Problem

I have a problem with qtys when I’m trying to order the same product more than one qty.

Example I have a T-Shirt with size: Small and qtys : 2

When I’m trying to order this products with 2 qtys in the backend the qtys reduced only one time. In product shows qty 1 but I have order 2 qtys. Inside the order shows correct 2 times the product and the total price is correct.

I have seen that in the sales_order_item table it has write only one time the simple product. ( The configurable product is two times but the simple only one time. )

Can anyone helps me?

Thanks!

Ps: Magento V. 2.4.3, MSI Disabled.