Cornerstone - unable to open pages

I have 2 sites both using same X theme and almost identical. and - all up to date.
They have the same plugins with the exception that harvestmill has Slider Revolution additional to the list. When I try to use Cornerstone to edit a page in millhouse I get to a page with the cornerstone logo in the centre and my 7 pages listed on the left. If I then try to select the page I want to edit I see the blue marker expand across the top of the screen & the logo pulsates 9 or 10 times and then nothing happens.

On harvestmill I can access the pages to edit - did notice they have notes like “Classic Elements” that I haven’t noticed before.

The fact that the two sites are responding differently seems odd to men so I thought I’d check if that perhaps points where to start?

Hi There,

Thanks for writing in! First of all, try re-generating your permalink settings and see if the issue is related to your .htaccess file.

  • Check your permalink settings (General -> Permalinks) and set Postname save changes to re-create your .htaccess file.

Then the next possible issue would be that you’re running out of your memory. You can try increasing your PHP Memory limit. You can do this by editing your wp-config.php file which can be located under the root of your WordPress installation.

Add the following lines into that 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. */

Check the following as well.

  • Make sure that you’re running at least PHP v5.6.x or later to avoid any WordPress related incompatibility issues. If you’re not sure what your server configurations and settings are, install a plugin like WP-Serverinfo ( and check your server info by head over to Dashboard -> WP Serverinfo area.
  • Check your PHP Max Execution Time and set it for 300 for optimal usage.

Further, you can check our troubleshooting guide here (

Let us know how it goes.

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