Artikelvorschau funktioniert, bei "weiterlesen" verschwindet der text

<?php
/**
 * The Template for displaying all single posts.
 *
 * @package WordPress
 * @subpackage Twenty_Ten
 * @since Twenty Ten 1.0
 */


get_header(); ?>


<div id="container">
            <div id="content" role="main">    
                <div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
                <h1 class="entry-title"><?php the_title(); ?></h1>


                    <div class="entry-meta">
                        <?php the_time('m.j.Y '); ?>  <?php the_category('  ,  ');?>
                    </div><!-- .entry-meta -->
                
                    <div class="entry-content">
                    


                            </div>    
                    
                        <?php the_content(); ?>
                        
                    </div><!-- .entry-content -->    
    <?php if ( get_the_author_meta( 'description' ) ) : // If a user has filled out their description, show a bio on their entries  ?>
                    <div id="entry-author-info">
                        <div id="author-avatar">
                            <?php echo get_avatar( get_the_author_meta( 'user_email' ), apply_filters( 'twentyten_author_bio_avatar_size', 60 ) ); ?>
                        </div><!-- #author-avatar -->
                        <div id="author-description">
                            <h2><?php printf( esc_attr__( 'About %s', 'twentyten' ), get_the_author() ); ?></h2>
                            <?php the_author_meta( 'description' ); ?>
                            <div id="author-link">
                                <a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>">
                                    <?php printf( __( 'View all posts by %s <span class="meta-nav">&rarr;</span>', 'twentyten' ), get_the_author() ); ?>
                                </a>
                            </div><!-- #author-link    -->
                        </div><!-- #author-description -->
                    </div><!-- #entry-author-info -->
<?php endif; ?>                
                    
                <div id="sharer">
                    <h3 id="sharer-title">Share This Post</h3>
                    <?php social_bookmark_share(urlencode(get_permalink()),urlencode(get_the_title()),urlencode(get_the_excerpt()));?>


                </div>


                <?php comments_template( '', true ); ?>
            
            </div><!-- #post -->
            </div><!-- #content -->
<?php get_sidebar(); ?>


</div><!-- #container -->
<?php get_footer(); ?>