Why did my Bluetooth headset disappear from Sound Settings and how can I get it back?

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http://askubuntu.com – Kind of similar to this, I paired my Bluetooth headset (Turtle Beach Ear Force PX5) in Ubuntu and it at first showed up in "Sound Settings" after pairing. It was not initially working, so I started tweaking some settings. I tweaked a setting on the microphone, and all of a sudden both the output/input device disappeared. The device works with Windows, although to get it to work with my phone simultaneously (the headset is 2ch) I usually disable the microphone and only enable it when needed. I captured the debug output from bluetoothd: bluetoothd[31789]: audio/headset.c:headset_connect_cb( (HowTos)