Joe Maller

I’ve bumped into this issue a few times with custom built themes. Check that the templates call the_post() somewhere. If a template doesn’t implement the main loop, WordPress can’t initialize the data used by functions like the_content etc. Yoast does something which either calls the_post or setup_postdata before loading the templates which populates the data WordPress needs.

More here: https://wordpress.stackexchange.com/questions/267808/post-content-blank-after-disabling-yoast-seo

• This reply was modified 7 years, 8 months ago by Joe Maller.

If the theme’s directory has spaces or dots in its name, WordPress will be unable to delete the theme. Make sure to name the theme directory using only alphanumerics, hyphens and underscores and everything should work correctly.

Sometimes when I use query_posts() I’ll save and restore a clone of the original query object by wrapping the new loop in the following commands:

$query_backup = clone($GLOBALS['wp_query']);
[...]
 $GLOBALS['wp_query'] = $query_backup;

Note that the clone method requires php5, but you can fake compatibility with something like this: clone for PHP4