Klarna Payment method is activated in the checkout. It works fine as long as you don't use a coupon code. If you do, the checkout page breaks with the following error:
main.ERROR:Order line totals do not total order_amount - 530 != 490
Here is what I did already:
- Deactivated ALL third party modules
- Activated Luma Standard Theme
- Deactivated all other payment methods
- Went through the database in the hope to find anything
- Tested different tax and pricing settings
- Updated from 2.3.3 to 2.3.4
Does anybody have an idea what I could have missed? Or what I should test next?
Using Magento 2.3.3 (live) and 2.3.4 (dev). Happens on both instances. Live and Dev are located on different servers.