[tomsem]

I cannot yet say whether this has to do with Family Library or not. I have it turned on but my wife does not read on devices. I can try tomorrow on her iPad to see what happens.

I have had a couple of cases where Whispersync for Voice did not kick in when it should have for a specific title. In both cases it took contacting Audible support to fix it.

The iOS Kindle app provides a way to filter titles to just those with Audible companions. What happens when you turn that on (on one of her iOS devices)? Does it list any of the titles from your library?

Kindles with the Audible feature support Whispersync for Voice (location sync) but not Immersion Reading. Fire tablets and Kindle for Android support both.