We bought an Instant Pot-brand air fryer. I love the thing entirely except for the buttons. They are not real buttons, just some sort of touch sensor but they sometimes just cannot detect a finger. You'd think that maybe the surface was dirty but it works just as bad when it's just been cleaned off and hands are washed. I beginning to think that the actual sensors are not aligned perfectly with the labels or that they are set to ignore someone pressing with their whole finger instead of the just the tip.