BuddyPress.org

I already have the following in my custom BP functions file:

if(bp_is_active('friends'))
		add_action('bp_member_header_actions', 'bp_add_friend_button');

	if(bp_is_active('activity') && bp_activity_do_mentions())
		add_action('bp_member_header_actions', 'bp_send_public_message_button');

	if(bp_is_active('messages'))
		add_action('bp_member_header_actions', 'bp_send_private_message_button');

	// Group Buttons
	
	if(bp_is_active('groups')) {
		add_action('bp_group_header_actions', 'bp_group_join_button');
		add_action('bp_group_header_actions', 'bp_group_new_topic_button');
		add_action('bp_directory_groups_actions', 'bp_group_join_button');
	}

As I say these buttons displayed in the theme in v1.7.3, they only disappear in v1.8. I think you’re right of course, it looks like a theme issue, I just cannot figure out what changed in v1.8 to stop these buttons working in my theme.