But isn't that an expectation problem? It doesn't behave as expected. But visually, it could have looked like anything. As long as the second thing looks exactl

But isn't that an expectation problem? It doesn't behave as expected. But visually, it could have looked like anything. As long as the second thing looks exactly like the first but behaves differently, it will be irritating. But the first thing can look like anything you want and it'll never be annoying, unless it too looks like something else. Plus, someone who gets introduced to the second interface first will have that interface become their reference point.