the pause can vary from 10 seconds to never coming back and happens mid song.
Here is a portion of the log file after the crash.
Rasberry PI 4
System Version 3.455 (the same thing happened with earlier versions}
NAS connection is to a Windows 10 PC using Wifi
Starting Live Log...** **info: CoreCommandRouter::executeOnPlugin: my_volumio , getAutoUpdateCheckEnabled** **info: Device is now in test mode** **Test mode enabled** **No alpha test mode** **info: CoreCommandRouter::executeOnPlugin: my_volumio , getAutoUpdateEnabled** **info: Update Ready: {"changeLogLink":"","description":"You're already on the latest version","title":"No Updates Available","updateavailable":false}** **info: CoreCommandRouter::executeOnPlugin: updater_comm , setUpdateMessageCache** **info: CALLMETHOD: system_controller system enableLiveLog true** **info: CoreCommandRouter::executeOnPlugin: system , enableLiveLog** **info: Launching a new LiveLog session** **info: CoreCommandRouter::executeOnPlugin: mpd , handleBrowseUri** **info: CURURI: music-library** **info: CoreCommandRouter::volumioGetState** **info: CorePlayQueue::getTrack 11** **CIFS: VFS: \\192.168.0.176 has not responded in 180 seconds. Reconnecting...** **info:** **---------------------------- MPD announces state update: player** **info: sendMpdCommand stop took 111626 milliseconds** **info: ControllerMpd::getState** **info: sendMpdCommand stop took 108993 milliseconds** **info: sendMpdCommand stop took 108787 milliseconds** **info: sendMpdCommand stop took 104274 milliseconds** **info: sendMpdCommand stop took 104065 milliseconds** **info: sendMpdCommand stop took 99479 milliseconds** **info: CoreStateMachine::play index undefined** **info: CoreStateMachine::setConsumeUpdateService undefined** **info: CorePlayQueue::getTrack 11** **info: CoreStateMachine::startPlaybackTimer** **info: CorePlayQueue::getTrack 11** **info:** **---------------------------- MPD announces system playlist update** **info: Ignoring MPD Status Update** **info:** **---------------------------- MPD announces system playlist update** **info: Ignoring MPD Status Update** **info:** **---------------------------- MPD announces system playlist update** **info: Ignoring MPD Status Update** **info:** **---------------------------- MPD announces system playlist update** **info: Ignoring MPD Status Update** **info:** **---------------------------- MPD announces system playlist update** **info: Ignoring MPD Status Update** **info: sendMpdCommand status took 5 milliseconds** **info: sendMpdCommand clear took 4 milliseconds** **info: sendMpdCommand clear took 5 milliseconds** **info: sendMpdCommand clear took 5 milliseconds** **info: sendMpdCommand clear took 4 milliseconds** **info: sendMpdCommand stop took 4 milliseconds** **error: Upnp client error: Error: This socket has been ended by the other party** **error: updateQueue error: null** **error: updateQueue error: null** **error: updateQueue error: null** **error: updateQueue error: null** **error: updateQueue error: null** **info:** **---------------------------- MPD announces system playlist update** **info: Ignoring MPD Status Update** **info: ------------------------------ 7ms** **info: ------------------------------ 7ms** **info: ------------------------------ 6ms** **info: ------------------------------ 6ms** **info: sendMpdCommand playlistinfo took 4 milliseconds** **info: sendMpdCommand add "NAS/MUSI/M Ward/M. Ward - More Rain (2016) [FLAC]/12 - I'm Going Higher.flac" took 4 milliseconds** **error: ControllerMpd::pushError: TypeError: Cannot read property 'split' of undefined** **info: ------------------------------ 15ms