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 in the new music loader. For more information, see https://github.com/OxygenCobalt/Auxio/releases/tag/v4.0.3.