I was able to “fix” this problem by clearing out the cache in WP Super Cache. Disabling the plugin by itself wasn’t enough. I also did the hard refresh as suggested. After that, everything magically reappeared. Good luck, @zgieske!
I added my credentials in the private content area. I believe this is the exact same problem @zgieske is having. If not, I’ll start a new thread.
Thank you!
I’m seeing the same thing on my site. I haven’t updated for a while, so I went from 3.3.x to 3.4.7. I don’t have any security plugins on this site. While updating, I had WP Super Cache, but I disabled that and I still have a blank editor for existing pages.