I have a problem... I've chosen a Flat Discount (Quantity min. 2 ->> discount 39,50€, Quantity min. 3 ->> discount 79€) and if I add to cart the same product variation everything it's ok, but If I add 1 product with a variation (example color: black) and then a 2nd product with a different variation (example color: white) the discount is wrong.
I have "Treat product variations separately" unchecked
How can I solve it?