Problem Description:
When using the Calibre plugin KFX Output to convert an EPUB file to a KFX file, an error occurs with the following message:
calibre, version 8.15.0
Error: KFX conversion failed: <p><b>Cannot convert test</b>
<b>Conversion error:</b> Enhanced Typesetting not supported for this book</p>
After testing, it was found that this error occurs when the EPUB file being converted contains CJK extension characters with Unicode codes such as "2E8A9," "322DC," "322D5," etc. An EPUB file is attached for reference. We hope you can resolve this issue. Thank you very much!
KFX Output, version 2.18.0