Group announcement issue

Hi, when setting a group announcement I only see one empty entry in the checkboxes for the group to select.
I actually have one group setup but it looks as though the plugin does not recognise it..

I have attached part of the error log that is relevant (I hope)...

31 Oct 2015 18:31:12
Schedule new trigger (delayed action)

31 Oct 2015 18:32:07
Z-Wave received "Front Door Bell" status update is on
Trigger Front Door Bell Ringing
Trigger new trigger
Sonos Announcement: The doorbell, Volume: 40, Line-In:
Sonos Error Error in plugin execution ExecuteAction:

Traceback (most recent call last):
File "plugin.py", line 169, in actionZP_announcement
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 1071, in actionAnnouncement
<type 'exceptions.ValueError'>: invalid literal for int() with base 10: ''

Z-Wave received "Front Door Bell" status update is off
Schedule new trigger (delayed action)

31 Oct 2015 18:34:58
Trigger Front door bell Sonos Kitchen
Sonos Announcement: There is somebody at the door, Volume: 40
Sonos Error Error in plugin execution ExecuteAction:

Traceback (most recent call last):
File "plugin.py", line 172, in actionZP_announcementMP3
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 1119, in actionAnnouncement
<type 'exceptions.IndexError'>: list index out of range

Schedule Front door bell Sonos Kitchen (delayed action)

31 Oct 2015 18:35:54
Disabling plugin "Sonos 0.8.15"
Stopping plugin "Sonos 0.8.15" (pid 5400)
Sonos Error Error in plugin execution stopConcurrentThread:

Traceback (most recent call last):
File "plugin.py", line 63, in stopConcurrentThread
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 290, in stopConcurrentThread
File "./lib/SonosEventLib.py", line 93, in ZMQ_Kill
<type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'close'

Sonos Error Error in plugin execution _preShutdown:

Traceback (most recent call last):
File "/Library/Application Support/Perceptive Automation/Indigo 6/IndigoPluginHost.app/Contents/PlugIns/plugin_base.py", line 135, in _preShutdown
File "plugin.py", line 63, in stopConcurrentThread
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 290, in stopConcurrentThread
File "./lib/SonosEventLib.py", line 93, in ZMQ_Kill
<type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'close'

Stopped plugin "Sonos 0.8.15"
Enabling plugin "Sonos 0.8.15"
Starting plugin "Sonos 0.8.15" (pid 5532)
Started plugin "Sonos 0.8.15"
Sonos Your plugin version, v0.8.15, is current.
Sonos Saved Plugin Configuration
Sonos Error Error in plugin execution runConcurrentThread:

Traceback (most recent call last):
File "plugin.py", line 58, in runConcurrentThread
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 200, in runConcurrentThread
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 1479, in getPlaylistsDirect
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 429, in SOAPSend
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/socket.py", line 348, in read
<class 'socket.error'>: [Errno 54] Connection reset by peer

Sonos Error plugin runConcurrentThread function returned or failed (will attempt again in 10 seconds)

31 Oct 2015 18:36:26
Trigger Front door bell Sonos Kitchen
Sonos Announcement: There is somebody at the door, Volume: 40
Sonos remove zone from group: Sonos Kitchen
Sonos Announcement Length: 1.656
Sonos Error Error in plugin execution ExecuteAction:

Traceback (most recent call last):
File "plugin.py", line 172, in actionZP_announcementMP3
File "/Library/Application Support/Perceptive Automation/Indigo 6/Plugins/Sonos.indigoPlugin/Contents/Server Plugin/Sonos.py", line 1158, in actionAnnouncement
<type 'exceptions.TypeError'>: cannot concatenate 'str' and 'NoneType' objects

Schedule Front door bell Sonos Kitchen (delayed action)

Please download the latest version of the plugin and try again. If it fails, turn on debugging and send me the output on plugin startup. Hopefully something simple.