It seems the Unattached Items playlist is missing from the unit's playlist list in beta 7. I'm guessing this is because it's only for the unit to group
tracks that aren't in a 'real' playlist, as might happen if a synchronization fails.

It is intentionally missing since it is a special playlist used as you describe. I thought it was removed from the old playlist menu too but maybe that was accidentally disabled at some point.

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Mike Crowe
I may not be speaking on behalf of empeg above :-)