The Preflight function was working for me up until yesterday. Now, when I hit the Preflight button the progress bar gets to about 60% complete. It then stalls and about 10 mins later, it goes red and the hover message says that the Preflight has failed. This isn't the exact error message but I've been waiting about 15 mins for it to return in order to copy the error message and it still hasn't returned yet.
Is this a server issue or could it be related to one of the article files (they are packaged web apps) that I'm including in the project? Is there any way of updating using another tool that gives more detailed error messages - e.g. a console app?