The list of images is in the same <div> as the <script>. This causes the code to thing there is 1 additional child to loop through.
I fixed this issue by editing:
easy-nivo-slider\misc\current-post-list-images.php
At about line 88 you will need to swap these lines:
// If the slider has any pictures, add the javascript to start it
if ($number_of_images > 0) sns_print_script_for_slider($parms);
to be under these lines:
//if (!$options[‘debug’])
echo ‘</div>’;
