Sidebar on single.php not showing up

It seems that the sidebar checks whether or not the Post Layout is set to “content”. If you remove that check, it should operate the way the main index page does.

Editing / commenting out the following lines in sidebar.php should solve the problem (if not, get you closer):

Find:

if ( 'content' != $current_layout ) :

Replace with:

//if ( 'content' != $current_layout ) :

Towards to end of sidebar.php, find:

<?php endif;

Replace with:

<?php //endif; 

The line above… is just above:

<?php $parent_title = get_the_title($post->post_parent);