I’ve seen several people run into problems when using the Overdrive Media Console on the Nook HD to borrow eBooks from the library. They download the book fine read the first page and then when they go to advance the book automatically skips to the next chapter. The problem only happens when Overdrive is downloaded from the Nook Store. The solution is to delete Overdrive, download Google Play from either the Nook Store (if still available) or a browser. Download Overdrive from the Google Play. Set up as before and should work fine.
Some applications just work differently from Nook Store vs Google Play. Twitter on the Nook HD needs to be the Nook version. I will update if/when I learn more.