Post Displayed Twice

Hi,
when we use shortcode:
$shortcode_content = ‘[ajax_load_more button_label=”Load More” posts_per_page=”4″ post_type=”post, video, news” pause=”true” offset=”1″ ‘ .’post__in=”‘ . $included_to_string . ‘” scroll=”false” transition=”fade” orderby=”date” order=”DESC”]’;

echo do_shortcode($shortcode_content);

Some posts appears twice. It displays only included posts, but some posts are displayed twice.Same happens when i use post__not_in and excluded posts. Good posts appears but some twice.
When i use same loop without excluding or including posts, posts are displayed once.
When i change your plugin version to 3.1.0 all works ok