Thank you so much for posting this. I had the same issue with the "do not mail" watermark. I had already tried to send mine and it got rejected so I had to mail in. I was able to go in and make some changes to the forms (which I didn't know was possible) and selected "print" before I submitted again--just in case. 🙂 I was so glad to see this exact question and really appreciate you sharing what helped you!
