The problem described went away for the last 3 months and has now returned with a vengeance. Have just submitted diagnostic 4414566. Thanks in advance.
When listening to an Audible (.aa) file, I periodically experience random stops, with the annoying side-effect that the play position returns to the start. I have only ever experienced this with the .aa files. It has occurred with multiple Sonos devices.
The .aa files reside on an "always on" Mac Mini running the latest Apple system and iTunes software.
It is purely random - play can go uninterrupted for hours, or the stopping can occur after just a few minutes. I can handle the stopping, but it is the resetting of the position to 0:00:00 each time that is driving me nuts.