miro.real crashed with KeyError in remove()

[Musashi]

Binary package hint: miro

Watching a video podcast and the video and sound are getting more and more out of sync. Behind the video the "miro has crashed" occurs repeatedly, though I don't notice any crash.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: miro 3.0.3-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CheckboxSubmission: 8476a9aa44c060ce0d8506087a9f57c6
CheckboxSystem: f48d8d6516e3b181ea4c2204de044afe
Date: Tue Sep 28 23:38:30 2010
ExecutablePath: /usr/bin/miro.real
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
InterpreterPath: /usr/bin/python2.6
ProcCmdline: /usr/bin/python2.6 /usr/bin/miro.real
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/miro.real']
SourcePackage: miro
Title: miro.real crashed with KeyError in remove()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers