[@jeffacubed Participant 13 years, 7 months ago]

Alexander – I’ve been experiencing EXACTLY what you describe on a Buddypress (1.6.4) + bbPress (2.2.4) multisite (WordPress 3.5.1), in that I can create new group topics from the back end (check), from the site-wide forums area (check) but NOT within the actual buddypress group area (front-end). As odd as this might sound, I did try enabling bbPress (over the entire multisite) which then enabled me to post/create new topics & replies from the front-end of the groups/forums area. If I switch bbPress back to being enabled only on site 1 (i.e the root in my multisite environment) then I’m back to the inability to post/create topics & replies via the front-end, though again this all works from the back-end + via the site-wide forums area (i.e new topic to a specific group forum works 100%).

So, I’ve concluded that somewhere along the line, there’s some sort of corruption, likely in one of the db tables &/or relationships. You’re not the only person I’ve heard of who has had this exact problem over the past few months w bbPress + buddypress + WP multisite. As a test, I created a multisite BuddyPress + bbPress fresh install, and the ability to create/post topics & replies from the front-end (within the group forums area) works 100% (i.e no disappearing). This test also works whether bbPress was enabled sitewide or a a specific site in the multisite network.

A very confusing problem indeed. The frustrating piece is I’ve actually come across this problem before (~ 3 months) ago, resolved it, though now I can’t 100% recall the steps I took to rectify!

I think I’ll tackle this one again, as the idea of needed to enable bbPress as a network activation to resolve the issue is not the most ideal situation, at least not for me.

Good luck!

-Jeff