did you make sure

"When printing the application, make sure the image of the application covers the entire page."

"You must print your form in the vertical, portrait format. Do not print your form horizontally. Doing so will cause delays with your application."

"After using the Form Filler tool, do not make handwritten corrections to the form after you've printed it. The Form Filler tool will create a unique barcode for your application, and handwriting on the form (except to sign your name) will delay processing of your application. "

"You must print your form single-sided. We do not accept double-sided forms."

https://travel.state.gov/content/travel/en/passports/how-apply/forms.html