App just deleted almost 400 songs from my library

[nacho_baracho99]

So when the new update hit on android(to version 8.4.52.812 armV7) I went to my library to shuffle play my over 2,000 songs, but only 1,600 appeared on the counter. Since there is no sane way to count 2,048 songs(thank god I have a playlist of my entire library) I just took the counter's word and am now stuck with the "Favorites" section instead of the Good ol' Library and missing 400 songs. Please help(...and what is this favorite nonsense with the instagram heart...)