[DaveBlake]

Dave, the very same FLAC file I sent you does play on my netbook, Windows 8.1 and VLC 2.2.1

Interesting to know. It is MS media player on Win10 that doesn't like it, nor does Grove, so there is something about that file that is different. Yet the file itself is not the entire issue, after all it plays from file view, but it is contributing in some way. If nothing else it has meant I can reproduce the issue.

What it has done is reveal a longer standing issue in the music library to player interface. Things work in most cases, but there is something that needs to be changed. Since it is a long standing issue going back before v15 in my testing, and v17 is frozen, the fix will be for v18 Leia.  I need more help from the player devs to understand it more fully or explain more clearly, but we are on it.

So thanks both for raising this issue, Kodi will be better as a result.