I have a relatively new (less than 6 months old) birkin and I noticed that I can just see the top of the two vertical lines of the pocket starting to show through on the back the bag. Is this normal? It is my first swift bag and I don't remember seeing it when I picked up the bag. I have not even worn her yet. I store her in the box, I know not ideal but I store all of my bags in their respective boxes, boxes open for air flow. I checked my other bags and none seem to have this problem. Do you think I missed this when I picked her up?