I’m having the same problem. I thought BuddyPress was working, but just found out that any time anyone else clicks Log In it just brings them back to the front page and does nothing.
I’m using the Platform Theme
I have GoDaddy Hosting
Plugins Installed:
Akismet
BuddyPress
BuddyPress Group Email Subscription
BuddyPress Links
Buddypress Sitewide activity widget
BuddyPress Template Pack
CubePoints
CubePoints Buddypress Integration
Google XML Sitemaps
Wickett Twitter Widget
WordPress SEO