Hi Luke,
I did a clean install of Ubuntu GNOME 16.04.1 just a few days ago.  With the 
Ubuntu-provided Pulseaudio packages, my Plantronics BackBeat Go 2 (PLT_BBTGO2) 
bluetooth headphones would connect and then disconnect.  I have now added your 
PPA and confirmed that the headphones connect and stay connected.  Oddly 
enough, the headphone profile was set to "Analog" by default.  Upon clicking 
the dropdown to select the profile, "Analog" was not an option, and it 
immediately auto-selected HSP/HFP.  I then changed it to A2DP and I was able to 
hear nice, high quality audio through my headphones! :)

Unfortunately, after turning the headphones off/on, the headphones
immediately reconnected and defaulted to the A2DP profile, but there was
no sound.  I then changed the profile to HSP/HSF and heard low quality
audio.  Changing back to A2DP resulted in silence.  I toggled between
the two profiles a few times and the issue persisted.

I then powered off/on once again, and this time I was able to properly
select the A2DP profile and hear perfect audio!

So, the connection issue seems to be fixed (for me, atleast)!  There
seems to be something that is a little bit strange with the audio
profile selection, although there may be some user error involved here.
I'll try and repeat my power cycling tests a few more times and see if
the issue is a software problem or a user problem.

Thanks for looking into this!

-Jason

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1574324

Title:
  pulseaudio crashes when connecting to bluetooth headphones (due to
  ubuntu changes?)

Status in pulseaudio package in Ubuntu:
  In Progress

Bug description:
  When I attempt to connect my Jaybird Bluebuds X to Ubuntu 16.04
  pulseaudio crashes, this does *NOT* happen with a Jambox which leads
  me to believe it's an intermittent problem with some hardware. This
  did not happen on Ubuntu 15.10 (which was an upgrade of 15.04).

  Ubuntu Release:

  Description:  Ubuntu 16.04 LTS
  Release:      16.04

  Pulseaudio Version:

  pulseaudio:
    Installed: 1:8.0-0ubuntu3
    Candidate: 1:8.0-0ubuntu3
    Version table:
   *** 1:8.0-0ubuntu3 500
          500 http://gb.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  Device info:

  [bluetooth]# info 44:5E:F3:B4:07:29
  Device 44:5E:F3:B4:07:29
   Name: BlueBuds X
   Alias: BlueBuds X
   Class: 0x240404
   Icon: audio-card
   Paired: yes
   Trusted: yes
   Blocked: no
   Connected: no
   LegacyPairing: no
   UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
   UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
   UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
   UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
   UUID: Handsfree                 (0000111e-0000-1000-8000-00805f9b34fb)
   UUID: Unknown                   (000080ff-0000-1000-8000-00805f9b34fb)

  I have also attached a debug dump of Pulseaudio when attempting to
  connect to the headphones.

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