Auxio 4.0.0 completely overhauls the user experience, with a refreshed design based on the latest Material Design specs and a brand new music loader with signifigant improvements to device and tag support. This issue fixes several regressions from v3.6.3's functionality, primarily fixing issues related to background playback and inefficiencies/errors in the new music loader. For more information, see https://github.com/OxygenCobalt/Auxio/releases/tag/v4.0.3.