Plugin conflict with bbPress

Hi,
first of all it’s a great plugin. I use WP 3.5.2 with BuddyPress 1.6.4 and bbPress 2.3.2

If I activate chechbox “Force SSL exclusive” on General Options page all new messages and answers in forums redirects with an error message. If I deactivate the checkbox everything works fine.

Regards
Thorsten

http://ww.wp.xz.cn/extend/plugins/wordpress-https/