Hi Matt,
Thank you for writing in, please do the following:
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Clear all the site caches (plugin, server-side, CDN, and browser’s cache) so that the code from the latest release is always in use. This will help you to avoid any potential errors. Please deactivate this caching features while we tackle this issue.
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Test for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
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Increase your allocated PHP memory limit by adding this code in your wp-config.php file.
define( 'WP_MEMORY_LIMIT', '512M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );
You can add it before the line:
/* That’s all, stop editing! Happy blogging. */
Increasing PHP Memory Limit
- If none of that works, try to DISABLE the ModSecurity (contact your hosting support to assist you on this) and see if that makes the Cornerstone work on homepage.
Let us know how it goes,
Cheers!