I been having the same exact issue and it only happens to the left ear bud. I just flew to New York and I was watching quite a few movies omw there. But soon as I got off the plane the left button of the ear bud was jammed. And this is the second time it happened to me. I immediately rested my ear phones but it didn’t work. So then I just ended up tapping the case with my earbuds inside of it on knee a few times and the button work!!! I think the problem is caused by pressure in the plane. Not sure