I found a bug in BO-Orders: If an address of a customer is edited directly in the order, the shipping cost in this order is changed to zero. The shipping cost should remains, not reset. If I edit the same address directly in BO-Customers, the shipping cost will not change.
Can you please help me, how solve this bug? I can edit any file directly in the code.
PS 1.7.4
Thank you very much.