Dext is flipping Tax 1 (ex. 5%) and Tax 2 (ex. 7%) when posting to QBO if Tax 1 amount is greater than Tax 2 amount (for instance, if there are non-taxable items in a transaction that cause the total tax to be different from the expected 12%). Dext is assuming the order should change in this situation and overriding the user input and user tax code mapping settings, posting the wrong tax amounts to QBO.