I've had this happen to me multiple times, and more often now that so much payment is contactless here (even though I still have the same code as when it wasn't

I've had this happen to me multiple times, and more often now that so much payment is contactless here (even though I still have the same code as when it wasn't). Additionally, something as simple as a different machine (the most recent instance was a touch screen) can throw me off as well.