Hello all, I got the exactly the same problem but I found a way that may be help.
I was install the WP on my Mac using MAMP, then BP and BB and they both work and integrated well. Activity stream showed. And then, I moved the test to the web server, do the same thing, activity stream not working but I noticed the @ mention stuff did work. The only thing that is different from my local setting is, the visibility of WP. I set the web server one to “block from search engine” while the local one “visible”. And then, I turn on the “visibility” to open and it works!!!
That’s it, simple and easy. It helps me but I am not sure whether it will be helpful for the rest of you!
