I have an early version of the FB4, purchased in Dec 2012. I'm starting to notice that the encoder mode buttons are not registering a key press with every physical button push. If I excersise the buttons, then I will get consistent results, but then a few hours later the buttons presses get inconsistent again.
Has anyone noticed this behavior with these small buttons under the encoder wheels? Are all the H4 desks using the same button hardware? If the problem gets worse, is it an easy swap to replace them?