"The preview was unresponsive after loading"

Hi there, something is wrong on loading Cornerstone on my homepage…
I’ve received the message: The preview was unresponsive after loading. This is most often related to a plugin conflict or aggressive page cacheing.

Any idea to fix it?
Thanks in advance


Hi there,

Thanks for posting in.

Please check this troubleshooting guide, https://theme.co/apex/forum/t/troubleshooting-builder-preview-warnings/14404/

Then please provide your site’s URL and login credentials in a secure note so I could check :slight_smile:


Ok, tried everything. Can you check?

Hello @mcvanz,

Thanks for sharing login details.

I just tested for plugin conflict and Cornerstone is loading on home page. Please deactivate all plugins and activate one at a time to narrow down. Also please clear browser cache to make sure you are not loading the cached resources.


Tried to deactivate all plugins but still not working. Any other idea?

Hi there,

It’s your WP Smush plugin, I deactivated it and your builder is now loading.


Hi Rad,
cleaned the cache but still have this error… any idea? suggestion?
Thx in advance


Hi Roberto,

We’d recommend that you increase your memory allocated to PHP if you haven’t done so already. To increase it, please edit your wp-config.php file and insert these lines:

define( 'WP_MEMORY_LIMIT', '256M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );

You can add it before the line
/*That's all, stop editing! Happy Blogging. */

And also make sure that you have the following on your server configuration:

If you have troubles increasing the PHP memory limit, please contact your hosting provider as they can increase it for you.

I hope this helps.

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