There has been some core issues with the backend management of the community profiles. No trouble found with clean installation on a remote site, problem seems to only persists on live site. Problem has not been localized, no estimated time until fixed. Community profiles and data have been backed up and will be restored once problem has been fixed.
Update: Community has been restored. Was unable to fix the problem; however, a work around was found and implemented. Please report any problems or bugs you may find in the forums.
Update 2: Problem has been localized and fixed. Look forward to additional new content and features for the Community coming soon! (11/13/2009)