Has it been confirmed that the removal of the following meta items from the toc.ncx was tried? I can't find it in the thread if it was.
Code:
<meta name="dtb:totalPageCount" content="0"/>
<meta name="dtb:maxPageNumber" content="0"/>
Neither are needed by books with no page numbers. And although their presence (with zero values)
shouldn't cause any problems under normal circumstance, I can't help but speculate whether a change to Apple's upstream process may not look at the dtb:totalPageCount and/or dtb:maxPageNumber attributes (regardless of their values) as evidence that page numbering is, in fact, in play and needs to be processed as such.
Just a thought.