Total round up not working as expected with discount

[hstrom]

Hi,

I have set the sum total round up as active in the settings, and 2 decimals. But Prestashop doesn't round up the total sum of an order when a discount is applied. 

Please see this screenshot of backend settings:
https://hstrom.mangoapps.com/sf/MTIzMTkyXzYwMjg2MzQ

And this screenshot of the front end result:
https://hstrom.mangoapps.com/sf/MTIzMTk0XzYwMjg2MzY

Any idea why this is happening? Why doesn't Prestashop round up the total? If I set to 0 decimals, it show a round up result, but when I go to the checkout, the sum is calculated without round up.

With kind regards,
Johan.

[hstrom]

No help with this?

With kind regards,
Johan.