This image is directly from a customer’s email. An Illustrator template for custom candy bags is sent to the customer and has about 10 layers on it. Somehow they always come back as Layer 1, flattened. I am opening them up in CS5. Can anyone advise on why a multi layered file constantly comes back from our customers as a single layer? Having all layers is very important for these bags to print properly. Any help would be appreciated!