Problem if set to totals only with invoice creating

[softint2]

If it is set to totals only in the option, prices are shown almost everywhere correct, but when creating the invoice there appears 1 rappen which isnt show anywhere else, just on the create invoice page, see screenshot 1.

When set to all prices and total, it is correct see screenshot 2.

Changing it for now to all prices and total, but wondering if there are any side effects and why it is wrong with using totals only and where is the difference.