I use BitTorrent Sync to transfer audio files to my Nexus 5. All files are transfered to the 'music' directory. When new files are added to this directory, the only way to update Play Music's library is rebooting android. There is an update button in Play Music ("Vernieuwen" in dutch) but this does not add the new files. To be honest I expected Play Music to automatically add the new files.
What can be the cause of this problem? And is there a way to solve it?
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