I found the solution to this, in class-sexy-login-widget.php change line 47 and 48 to look like this
if ( $sl_options['show_profile'] )
$buttons['Edit My Profile'] = bp_loggedin_user_domain();
I don’t know if this will help you or not, I was just having the same problem, I disabled Make known users anonymous so they’re served supercached static files. Now everything works as intended.
