Help Bluetooth media control only works when phone is unlocked?

[Eugene]

My bluetooth headset controls only work if I unlock the phone, I can't see any setting around that, anyone else run into the issue.
So next/prev track and play/pause do nothing if the screen goes to sleep while playing music so I have to wake it up then unlock then use the buttons.

 

[zoxxo]

It's under "location and security settings"

Allow Bluetooth Bypass...