Hi,
I have updated to the new version of Cornerstone and now get the above error. I know there is code to suppress the error, but there is still scrambled elements on the page - left.
I do have W3TC and when i disable it the error disapears, i do however need W3TC Enabled. Can you assist please?
EDIT - i need to work on the site so i am disabling W3TC for the next 2 hours today incase you dont see a problem with it