You can fix this by upgrade animsition.js.
https://github.com/blivesta/animsition
This plugin use old animsition.js to page transition effect.
I swaped these files to plugin folder, and problem solved.
animsition.js(rename to jquery.animsition.js)
animsition.min.js(rename to jquery.animsition.min.js)
animsition.min.css
animsition.css
I got same problem, and finally fixed it because of my angry client.
74-97 line of wordpress-posts-timeline.php
$posts = get_posts( $post_args );
echo '<div id="timeline">';
echo '
<ul>';
...
echo '</ul>
';
echo '</div> <!-- #timeline -->';
wp_reset_postdata();
}
I changed echo to $t_text
like this
$t_text = '<div id="timeline">';
$t_text .= '
<ul>';
foreach ( $posts as $post ) : setup_postdata($post);
$t_text .= '
<li><div>';
...
$t_text .= '</li>
</ul>
';
$t_text .= '</div> <!-- #timeline -->';
return $t_text;
wp_reset_postdata();
it works!
Thanks for good plugin.