Bank Fund Transfer Creates a Db and 2 Cr in the From Bank Account

Hi,
Whenever i use the bank fund transfer screen, 3 entries on the From bank. Creates a Db and Cr that nets to zero and then a Cr. Is there a reason why its creating 3 entries on the from bank?

The only reason I can think of is for currency calculations.

Thanks Mark! Thought i had set it up wrong or was missing something