WordPress Visual Editor Kitchen Sink disappearing issues.

You know best about your WordPress installation, so you are the right person to solve the issue.
Make a note of every minor changes you made to the WordPress core files, plus those on themes and plugin customization.

The Kitchen Sink Visual Editor is finally back.

What was tried:

  • Disable plugins
  • Disable themes
  • Disable CDN
  • Disable editing capabilities
  • Enable debug
  • Finally reboot your server, lucky if you are running the site via VPS just like this website.

Make a summary of things to try to troubleshoot as mentioned here
I spend 3 days figuring out what the actual issue was and finally there was the solution.
Let me share what I did so far to solve this issue.