Hi, I have the same issue. I have tried your above fix, but then it only applies to item in that category. This is what I want it to do…
Product A from Category B put in cart at €24.99
Product C from Category D put in cart (discount of 20% applied, because a second item was added).
Total €39.98
I sell T-shirts and they are all €24.99. I want the discount to apply on any 2 or more items from any category.
Hope you can help, Adam.