Recently (after updating to 5.8?), I've noticed that periodically the position in the Favorites list is lost when playing from USB. Sometimes it will forget which song was playing last and sometimes it gets locked into a mode where it keeps repeating the last song that was being played.
Both issues can be resolved by manually re-selecting a song in the playlist.
I suspect this could be related to Sleep mode - that the current media playback settings aren't being stored properly when entering sleep or are not completely restored when resuming from sleep.
Anyone else seeing this?