Thanks otsaloma.

If this is really just a J1 problem I can understand. I guess some race condition on older (bit slower) problem someshere?

I had a brief look at the quit(s) and I would start my simple plain ' print "Something" ' statement begore and after line
self._worker_thread.join()
in poor/voice.py even I do not see.why it should not join...
(not knowing how task_queues are handled in python)

Have fun, pichlo