BuddyPress.org

Hmm.. there is the following code that looks suspect in the plugin:

/* Fetch an existing activity_id if one exists. */
			if ( function_exists( 'bp_activity_get_activity_id' ) )
				$id = bp_activity_get_activity_id( array( 'user_id' => false, 'action' => $activity_action, 'component' => $bp->groups->id, 'type' => 'exb', 'item_id' => $group_id, 'secondary_item_id' => wp_hash( $post['blogurl'] ) ) );

Anything here stand out as a possibility?

Also, regarding the thumbnail integration, I’ve been trying to figure out what the necessary fetching rules are to gather that data? The below is clearly where it goes, I just have no clue how to properly integrate this..

	/* Set the visibility */
		$hide_sitewide = ( 'public' != $group->status ) ? true : false;

		foreach ( (array) $group_blogs as $feed_url ) {

			$rss = fetch_feed( trim( $feed_url ) );

			if (!is_wp_error($rss) ) {
				$maxitems = $rss->get_item_quantity( 10 );
				$rss_items = $rss->get_items( 0, $maxitems );

				foreach ( $rss_items as $item ) {;
					$key = $item->get_date( 'U' );
					$items[$key]['title'] = $item->get_title();
					$items[$key]['subtitle'] = $item->get_title();
					//$items[$key]['author'] = $item->get_author()->get_name();
					$items[$key]['blogname'] = $item->get_feed()->get_title();
					$items[$key]['link'] = $item->get_permalink();
					$items[$key]['blogurl'] = $item->get_feed()->get_link();
					$items[$key]['description'] = $item->get_description();
					$items[$key]['source'] = $item->get_source();
					$items[$key]['copyright'] = $item->get_copyright();
				}
			}
		}

		if ( $items ) {
			ksort( $items );
			$items = array_reverse( $items, true );
		} else {
			return false;
		}

		/* Record found blog posts in activity streams */
		foreach ( (array) $items as $post_date => $post ) {

			$activity_action = sprintf( __( '%s from %s in %s', 'bp-groups-externalblogs' ), '<a class="feed-link" href="' . esc_attr( $post['link'] ) . '" target="_blank">' . esc_attr( $post['title'] ) . '</a>', '<a class="feed-author" href="' . esc_attr( $post['blogurl'] ) . '" target="_blank">' . attribute_escape( $post['blogname'] ) . '</a>', '<a href="' . bp_get_group_permalink( $group ) . '">' . attribute_escape( $group->name ) . '</a>' );

			$activity_content = '<div>' . strip_tags( bp_create_excerpt( $post['description'], 175 ) ) . '</div>';
			$activity_content = apply_filters( 'bp_groupblogs_activity_content', $activity_content, $post, $group );
			/* Fetch an existing activity_id if one exists. */
			if ( function_exists( 'bp_activity_get_activity_id' ) )
				$id = bp_activity_get_activity_id( array( 'user_id' => false, 'action' => $activity_action, 'component' => $bp->groups->id, 'type' => 'exb', 'item_id' => $group_id, 'secondary_item_id' => wp_hash( $post['blogurl'] ) ) );

			/* Record or update in activity streams. */
			groups_record_activity( array(
				'id' => $id,
				'user_id' => false,
				'action' => $activity_action,
				'content' => $activity_content,
				'primary_link' => $item->get_link(),
				'type' => 'exb',
				'item_id' => $group_id,
				'secondary_item_id' => wp_hash( $post['blogurl'] ),
				'recorded_time' => gmdate( "Y-m-d H:i:s"),
				'hide_sitewide' => $hide_sitewide
			) );
		}

		return $items;
	}