Form Inputs have double-vision effect after the are merged and exported

When I fill a form field and download it using the demo feature on the website, the merged output PDF has this strange double-vision effect to the entered form field when I open the document in Adobe Acrobat DC.

At first I thought it was a styling issue with my document but I tested it by creating a brand new blank document with a single form field with all defaults and it produced the same corrupt output.