Within the Page.ss, the raw template throws the in
<?xml version="1.0" encoding="UTF-8"?>
as the first line of code. This always causes issue with my HTML, so I always delete it. While waiting for an answer, I just started to build out the html code, and wouldn't you know it, it works (didn't even realize it until I saw your response E-mail)! I added back in the code and sure enough, recreated the error.