I came across this thread via a google search since I use the order report when I claim tax refunds from Amazon for exported goods. I then use the refund report to compare if all the refunds have been made.
Like the others, I was pointed to toward downloading all of the account information and that took about a day. I can´t see myself being able to use the new reports (I can go into the details).
I sent an email and complained and they gave me a $30 promo which is nothing compared to what I am losing. I replied and asked for confirmation on if the reports would return and am waiting on a reply.