transmageddon fails to start

[Joel Pickett]

~ $ transmageddon
/usr/lib/python3/dist-packages/gi/module.py:153: Warning: cannot register existing type `GstFormat'
  wrapper = enum_register_new_gtype_and_add(info)
Traceback (most recent call last):
  File "transmageddon.py", line 147, in do_activate
    self.win = TransmageddonUI(self)
  File "transmageddon.py", line 404, in __init__
    self.p_time = Gst.Format.TIME
  File "/usr/lib/python3/dist-packages/gi/module.py", line 316, in __getattr__
    return getattr(self._introspection_module, name)
  File "/usr/lib/python3/dist-packages/gi/module.py", line 153, in __getattr__
    wrapper = enum_register_new_gtype_and_add(info)
RuntimeError: Unable to register enum 'GstFormat'

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: transmageddon 0.25-1
ProcVersionSignature: Ubuntu 3.8.0-2.6-generic 3.8.0-rc4
Uname: Linux 3.8.0-2-generic x86_64
ApportVersion: 2.8-0ubuntu2
Architecture: amd64
Date: Mon Jan 28 18:57:03 2013
InstallationDate: Installed on 2013-01-22 (6 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130121)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: transmageddon
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.