I think I can share the redacted file, as it has no text beyond a few sentences. Will delete it once I get an answer:
https://www.dropbox.com/scl/fi/qavob...91xf611yr&dl=0
None of these meta tags are in the epub. I see these:
Code:
$ ack -iw meta
OPS/section2_article1.xhtml
8:<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
OPS/section1_article2.xhtml
8:<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
OPS/pub.opf
10: <meta xmlns="" name="PPContentKind" content="magazine"/>
11: <meta name="cover" content="i-00001"/>
OPS/section1_article1.xhtml
8:<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
OPS/section2_article2.xhtml
8:<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
OPS/toc.ncx
4: <meta name="dtb:uid" content="xxx"/>
5: <meta name="dtb:depth" content="3"/>
6: <meta name="dtb:generator" content="calibre (7.4.0)"/>
7: <meta name="dtb:totalPageCount" content="0"/>
8: <meta name="dtb:maxPageNumber" content="0"/>