Changing the quantity in the currency exchange automatically

I play controller if it matters. The exchange prices change automatically and half the time I sell I end up selling at literally half the cost because it assumes I wanna give one away instead of not accept the single 50 percent offer the exchange shows my default. The trades auto complete and we're left just wasting materials gold and time. I'm pretty sure it's a new feature but it's literally the worst way you could design an exchange like this and if you're trying to avoid bots taking over you just gifted them a guarantee that there will frequently be half price accidental sales