Reduce product stock individually in a bundle

Hi. I use this plugin to create a bundle (2 unit) for a simple product. However, after creating order for that bundle. It doesn’t decrease the stock for the product individually in that bundle. How can I achieve this?

If related, I use POS from (https://codecanyon.net/item/woocommerce-point-of-sale-pos/7869665) that utilize Woocommerce API to create order.