abrt version: 1.1.18
architecture: x86_64
cmdline: python /usr/bin/pitivi
component: pitivi
executable: /usr/bin/pitivi
kernel: 2.6.35.14-106.fc14.x86_64
package: pitivi-0.14.0-2.fc14
reason: pipeline.py:779:releaseQueueForFactoryStream:PipelineError: Couldn't find Queue for Stream/Factory
release: Fedora release 14 (Laughlin)
time: 1323631269
uid: 500

backtrace
-----
pipeline.py:779:releaseQueueForFactoryStream:PipelineError: Couldn't find Queue for Stream/Factory

Traceback (most recent call last):
  File "/usr/share/pitivi/python/pitivi/ui/encodingprogress.py", line 71, in _cancelButtonClickedCb
    self.emit("cancel")
  File "/usr/share/pitivi/python/pitivi/signalinterface.py", line 145, in emit
    *args, **kwargs)
  File "/usr/share/pitivi/python/pitivi/signalinterface.py", line 119, in emit
    res = cb(*ar, **kw)
  File "/usr/share/pitivi/python/pitivi/ui/encodingdialog.py", line 300, in _cancelRender
    self.shutdown()
  File "/usr/share/pitivi/python/pitivi/actioner.py", line 68, in shutdown
    self.removeAction()
  File "/usr/share/pitivi/python/pitivi/actioner.py", line 132, in removeAction
    self.action.deactivate()
  File "/usr/share/pitivi/python/pitivi/action.py", line 146, in deactivate
    self._releasePipelineObjects()
  File "/usr/share/pitivi/python/pitivi/action.py", line 650, in _releasePipelineObjects
    self.pipeline.releaseQueueForFactoryStream(consumer, consstream)
  File "/usr/share/pitivi/python/pitivi/pipeline.py", line 779, in releaseQueueForFactoryStream
    raise PipelineError("Couldn't find Queue for Stream/Factory")
PipelineError: Couldn't find Queue for Stream/Factory

Local variables in innermost frame:
self: <pitivi.pipeline.Pipeline object at 0x1a1bc50>
stream_entry: <pitivi.pipeline.StreamEntry object at 0x2fc2a50>
stream: <pitivi.stream.VideoStream object at 0x23ff210>
factory: <pitivi.encode.RenderSinkFactory object at 0x2fc22d0>

How to reproduce
-----
1. export video from project
2.
3.