I can 2nd this issue. About 12 hours ago I was working on weaponsmithing and was in need of some more materials. I put in a custom buy order for 48 Smooth Scales. I collected them from the Trading Post as they came in so that they would not back up, since they arrived in groups of 1 to 9 at time. After I received the first 31, my “Items I’m Buying” tab showed I had 16 remaining on my order. I thought perhaps that 1 extra was delayed, so I played the game as regular and waited about half an hour before the last 16 arrived for pick up, hoping that the 17th would be there also. The last 16 arrived and I checked the “Items I bought.” It showed a total of 48 Smooth Scales payed for, yet I only ever received 47 with no indication of what happened to that last scale. Hope this helps pinpoint the issue!