Netherworld news from the Barnes&Noble distributors:
The book recently re-shipped to B&N, and the Technical Team is keeping a close eye on those shipments to ensure there are no more errors. B&N should be able to list it shortly. It looks like previous errors were the culprit.
Not sure what to make of this, but it seems Smashwords are working on the problem. It's just too bad it's been over 5 weeks. Hopefully, this won't happen again with my new book coming out at the end of the summer.