On the consolidated product report, we show 0.00 PLN in sales despite having 7 orders with product bundle.

There is an issue where the set is counted as 3 items (the set itself, collagen, and creatine)—this is visible in the screenshot showing 5 products (someone ordered the set plus two additional products separately, yet it is being counted as 5 items).

The set counts as 3 products (the set product + the 2 products included in the set).