I am experiencing the same problem. I purchased PFS scenario #7-18 (order number 3917521) around 6:20 PM pacific time. When I click on the link in My Downloads, the download does not begin and do not get the "your download will start in 5 secs" message. The page just refreshes with scenario #7-18 at the very top and does nothing else. When I download older purchases, it works fine.