Almost Famous bohemian tie back embroidered dress

This dress is size Xl Measurements Taken Laying Flat: Chest: 20 Hips: 25 Length: 36 Sleeves: 17 Back Seam to Seam: 16 In the very last picture it shows a a line through the fabric. When I bought this it was there. I think it’s a flaw that occurred while making the dress. It’s on the left sleeve up by the shoulder. Front side. It’s only noticeable if you are trying to find it.