I just bought this purse two weeks ago and the edging between the top and back of the bag seems to be cracking already. I tried to moisturize it and it helped, but I worry it will eventually flake off. Is this normal with these bags? I own plenty of Coach and Michael Kors leather bags and have never had this happen, so I was surprised when it happened to a $1200 bag. I bought it from Nordstrom and they said they would exchange it no problem. It's not the easiest to catch on camera, so I'm hoping you can see it. Thank you in advance!