I’m running into an issue with the Cornerstone editor whereby I can’t see any of the page contents when I go in to edit a page or post type. We’re on X version 5.7.1 and Cornerstone 5.3.3. Can’t say when this behavior started, after which update, as it’s been a while since we’ve updated site content.
Behavior is exactly as described here, with same console error. Blank editing page, with a seemingly functional sidebar: