Just following up on the status. So I deactivated and reactivated all plugins one-by-one while checking after each deactivation whether that solved the problem – that didn’t fix the problem. Also reverted from Nouveau pack to Legacy pack (the only other option in the drop-down) – that layout was not presentable nor did any of the content show up in either group. Also, created a new group and that also included the contents of the first two groups. Just to note my website theme is Sahifa (which I would rather not change just for fixing this).
Thank you for your reply Prashant. Would that be all my WP plugins or the two associated with BuddyPress only? The theme BuddyPress template pack, by the way, is Nouveau.