Volumio version 2.712 (seen the same behavior in previous versions)
Problem: playing music from iPad via Airplay > switch back from Volumio to iPad or any other airplay device > Volumio's status remains 'play', seek state keeps counting into infinity. The only way is to start playing anything from playlist, or stop playing on iPad before disconnecting.
Expected behavior: Volumio detects airplay client disconnected and changes status to 'stop'.