Logging out of Joomla and back in should work as long as you go to JFBConnect -> Usermap. If you click on the social network icons in the overview page, that will cause the issue.
Either way, we hope you're ok waiting for the next release. If other critical issues come up, we'll release a newer version sooner.. this just isn't such a critical issue right now. If you need it to work though, we can provide you with the minor code modification you'd need to take.
Thanks,
Alex