Yo!
Discount code types mentioned in the title yield different price between Shopping Cart page and Checkout page, while using Klarna Checkout plugin, and only those discounts.
For discounts I have tested actual numbers, percentages, cummulative discounts, the price changes (either up or down) when using those discounts (alone or with other discounts or giftcards) without any visible pattern at times. As a UX guy, I am at a complete loss.
Discounts for order total (after tax), order subtotal (before tax), shipping, as well as giftcards ALL work perfectly and the price between shopping cart page and checkout page remains the same.
I would be grateful for pointing me in the right direction where I can at least try to find a problem and get the initially mentioned discounts working right!
Thank You & All the best!