I updated to WordPress 3.4 today and as soon as I did when I tried to add a new image to my gallery it always gives me the "Cheatin' Uh" error no matter what gallery it is. I disabled all plugins and even all jetpack plugins and it still gives the error. Unfortunately I didn't backup before updating because this site hasn't been launched yet as its fairly new. What can I do? My completion date for the site is tomorrow!