Originally Posted by
MSFTisMIA I'm playing around with this while talking to the GF.
I need to do some more testing, as I'm wondering if it's the headphone itself. So far, if you have the phone app open but the screen off, it's fine - even if the phone is locked. I think the issue is when you get out of the phone app and maybe lock the screen again with the earphones in, then you've got the issue.
I tried it on speakerphone both in the phone app and the screen off, and from the home screen and locking the phone...It worked fine in both cases.
My guess is that it's a bug. I updated to the latest ROM OTA, so I'm not sure. I'll play around with this some more before deciding to pull out the pitchfork.