The current mission control (telepathy-mission-control-5.3.2-1.fc13) is not a stable release:
"The 5.4.x branch is a new stable branch, starting from the last development
Fedora 13 should ship a stable release, so mission control should be updated to 5.4.0
Building for rawhide now. Will push to F-13 once built.
telepathy-mission-control-5.4.0-1.fc13 has been submitted as an update for Fedora 13.
telepathy-mission-control-5.4.0-1.fc13 has been pushed to the Fedora 13 stable repository. If problems still persist, please make note of it in this bug report.