We had the same problem, also after implementing Autoptimize features. To get it working again, tell the plugin not to cache the notification bar. Add this under “Exclude scripts from Autoptimize”: wpfront-notification-bar.js,
I believe I’m having the same issue; after the WP update, the visual editor is breaking. No text or images appear, though switching to text editor reveals the html content.
Deactivating FASB fixed the issue.
I’m having the same issue on two sites with different themes; I’m replying here to follow the thread.
Thanks!