[KevinH]

Hi DiapDealer and Toxaris,

Thanks for figuring that out. The actual content.opf text itself is never used in the launcher. It literally parses the content.opf from inside Sigil and then provides an interface to change its pieces and to rebuild it on the fly.

The code to parse the Sigil content.opf simply did not properly handle the case of using explicit opf: prefixes on the tags. The content.opf that is rebuilt on the fly then was missing the metadata. The rebuilt-on-the-fly version does not use explicit opf: prefixing (as it is redundant give how it creates the metadata tag), the new version of the opf_parser.py simply removes any redundant opf: prefixes from tag names.

This in turn allows all of the metadata to be properly parsed and captured, and therefore the rebuilt on the fly version to now have the metadata.

The upcoming new release is expected shortly and it will have that bug fixed.

I have attached an updated opf_parser.py, that can be used until then.

Thanks so much for your bug report!

Kevin