I am wondering if my problem is theme related, I had <!--nextpage> on a single page as it works correctly on ata 3.5.3, but not 3.6.1 or 3.6.4. The pagination seem works, but the permalinkfor page 1 on 3.6.x is not generated regardless which page I clicked, I manually added wp_link_pages() to the theme option center content it doesn't resolve the link problem either. The html code is always like
<p class="post-pagination"><strong>Pages:</strong> 1 <a href="/mainpage/2/">2</a> <a href="/mainpage/3/">3</a>...</p>
Does anyone know which theme file to look for? Thanks.