Cornerstone Conflict with new version of Gravity Forms

Hello -
I am using the latest version of X with Cornerstone. When I updated Gravity Forms to the latest version today (2.2.3) I suddenly started getting this error when trying to edit a page in Cornerstone:

Fatal error: Uncaught Error: Class ‘Cornerstone_Control_Undefined’ not found in /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control.php:42 Stack trace: #0 /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control.php(85): Cornerstone_Control::factory(‘border_style’, Array) #1 /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control.php(25): Cornerstone_Control::groupFactory(‘border’, Array) #2 /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control.php(66): Cornerstone_Control::factory(‘border’, Array) #3 /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control.php(21): Cornerstone_Control::mixinFactory(‘border’, Array) #4 /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control-group.php(26): Cornerstone_Control::factory('borde in /home/hilltop8/public_html/staging/wp-content/plugins/cornerstone/includes/classes/controls/class-control.php on line 42

If I deactivate GF then Cornerstone works properly again, and I am about to downgrade GF to the prior version just to get things working again, so this is more of a heads-up than anything else.

My URL is staging.hilltopmontessori.com

Thanks!

Hello,

Our team will check it and provide an answer as soon as possible.