I can not access my projects new or old after modifying. After saving the project a grey X appears and when I select to save as a JPEG or reopen the project , an errror message pops up saying This Is Not A Valid Project. I have had the Photoshop Touch app on my 3rd gen iPad for 4yrs and have never had any problems until yesterday. The project also can not be accessed form the cloud. I have deleted and reinstalled the app, but the same error exists.