Are you using BuddyPress (a free version of BuddyBoss, basically) to build a social media type community site using WordPress? If so, you're pretty smart.  But you may be getting discouraged on your "Activity Feed" page by the actually community activity feed not loading.  Are you just stuck on a screen that says "Loading Community Updates?"  But you are seeing them on the Member Profile Page Activity Tab!  What gives?  This shows you how to fix it and keep those community updates flowing on the Activity Feed page.