I upgraded yesterday 2/15/2016 to 4.4.2 and I can no longer edit posts, edit pages, or even write new posts. I receive a blank page in the template with Word count set to 0.
I deactivated and activated all plugins. I deleted several security plugins and reinstalled them. I then restored my blog back to February 5, 2016, and still have the problem.
I’m at a total loss.