Traceback (most recent call last):
  File "/usr/lib/pitivi/python/pitivi/elements/singledecodebin.py", line 338, in _padEventCb
    self._unblockPad(target=pad)
  File "/usr/lib/pitivi/python/pitivi/elements/singledecodebin.py", line 315, in _unblockPad
    target.remove_event_probe(self._eventProbeId)
TypeError: Parameter 'handler_id' must be an int or a long