When attempting to download bibliotheca and Axis360 audiobooks, the same set of errors occur. First the profile is a long string of zeros, then on step 6 "Subtask 'Audio Book' raised an unexpected exception", then on step 8 "Strategy failed", then on step 10 for parsing manifest the parsing fails for all URLs available, stating "Missing a required field 'href'"

Tested on NYPL "Man Going West" by Louis L'Amour and "The Phantom Tollbooth" by Norton Juster.