I am using windows hotmail for the past few years, and recently the layout of hotmail is changed. along with the layout, now i am not able to see the documents in the mail attachments which are received from banks/credit cards. Don't know if anyone else is facing this issue. See the image below which is showing documents but the actual attachment is missing from the mail
I had the same problem and just found out what caused it. In my case I am using Google Chrome and use Adblock. After excluding the outlook.live.com domain from Adblock the attachment returned. I hope this helps you too.