I upgraded my Android phone (HTC One M9 on Verizon) to Marshmallow this morning. When I went into Audible, all the books I had downloaded were available in the cloud but no longer in my device library. The same thing seems to have happened with audio files from my podcast player (Doggcatcher). Interestingly, it appears that my pictures were not deleted.
Any idea on how to get my audio files back, short of re-downloading them all?