ok... so, after a full restart, I was able to reconvert the above title to epub, but still unable to serve it through Calibre and Stanza. The are 4 other files that also seem to share this issue. When attempting to view the epub file in calibre, the first 28.9 of 298 pages are blank between the front pic and the copyright info, followed by some very bad OCR. I'm guessing that the font type or other chapter heading things have caused this particular issue, though I don't understand why it's not being served to stanza anyway if the file structure is maintained.
Any further suggestions welcome,
Beau