I’m not sure if this is the answer you need as I’m not that knowledgeable on the backend. But here is the link to all the BuddyPress information with additional links.
Hope that helps and good luck!
Same problem here.
I found two workarounds so far.
1. if you use mediapress or rtmedia as media component, they have a feature for uploading from activity stream.
2. replace “what’s new” by tinymce. I have chosen the second option but I am struggling with the editor resizing. See the thread
@ravals Active 1 year, 2 months ago