My left and right ⌘ Command keys are being extremely unresponsive on my MacBook Air (13-inch, Mid 2012). They might work for hours and then stop working again. The odd thing is that when they do stop working, so does the number zero (0).
Mashing the three buttons all at once (as one does when in frustration) sometimes solves the issue temporarily. I'm using the digital keyboard viewer in the case that i need to use a "0", and the " ´ " (directly to the left of Delete) key seems to constantly be orange.
Strangely this highlight disappears when pressing either of the ⌘ Command keys (using the mouse to press them on the keyboard viewer). Now, the thing that confuses me the most is the fact that when pressing both ⌘ Command keys as well as 0 (physically), then pressing the highlighted "´" key, it types out "n´-" instead of just "`", which should be expected if the other keys weren't functioning.
All of this boggles my mind. Is there some simple thing I'm missing? I refuse to get my keyboard replaced as that last oddity implies there's nothing wrong with the keyboard itself...
I've just found that a more reliable temporary fix seems to be to hold down both command keys, however pressing 0 once will undo the fix.