Note that you can link to pages in a PDF with a hash like #page=64 (for example) in the URL.
https://pagedout.institute/download/PagedOut_008.pdf#page=64
EDIT: Fixed. It wasn't the tags - it was a trailing space we had in the "database". I honestly though I've handled that case, but apparently not .
Worth noting that the HTML tag in the title was stripped from the PDF table of contents as well, so the title for that article in the contents is missing a word. No big deal, but good to know for future submissions!