Hello! I just received a Space Gray 128GB iPhone 6s Plus. I've noticed that the earpods cable does not "lock" into the audio jack. Without much pressure, the cable easily slides in and out. I didn't think this was a problem until I went running with the phone and the cable wouldn't stay put. It would slightly pop out and interrupt the audio. I own a pair of headphones too; same result. They do not lock in either. Anyone else experiencing this?