fee is calculated after changing paymentmethod

-- HikaShop version -- : 4.7.4
-- Joomla version -- : 3.4.2
-- PHP version -- : 8.1

Hi,

Something strange is happening with the payment. When a customer chooses Paypal checkout (new), by default setting a fee is calculated (3,6 %). That works fine.
But when te customer (or in the backend the administrator) changes the paymentmethod before actually paying, the other paymentmethods get a fee too? But all the other methods are configured with no fee at all.

In the screenshot order this customer changed the paymentmethod from Paypal to iDEAL and some fee was calculated for iDEAL?

Hi,

I now,and I tried to reproduce this but than the system works like it should..Both with registered and guest orders. I can't find out why it didn't remove the fee from the first chosen paymentethod.