Gospel Library Audio recordings missing for new manuals

[e2b19c2006]

In the past the Teachings of Latter Day Prophets and parts of the Sunday School manuals had audio recordings playable through the Gospel Library App that I could listen to on my iPhone, but they seem to be missing from the most recent Lorenzo Snow and Doctrine &Covenants manuals. Is this a problem on my end? Are they going to be available in the future? This is the only way I stay caught up on reading assignments. Thanks!