If it’s any consolation, yours lasted two weeks longer than my pair did before the left cup completely broke off.
LOL...yeah, but as a result I'm just outside the 30 day return window. Anyway, I'll see how Adorama customer support respond to my request to return them for a full refund. The HE-560 sound great, but suffice to say this is the last Hifiman product I will ever buy.