The songs are still there. I can see all of the MP3 files in /storage/emulated/0/music using the Folders button in MMA. In the Options, that folder is selected under "Choose library folders."
If I go to Options and click on "Check for new/changed media," all of the music will once again show up in my library -- for a while. It typically takes no more than an hour to two before they disappear again. It is driving me nuts (though it is a short drive.)
![:o](./images/smilies/icon_eek.gif)
Using MMA Pro 1.0.4.0245. (I was originally using MMA Beta and had the same issue.)
Phone is Samsung Galaxy S5 (Sprint) with Android 4.4.2.
Thanks in advance!