If you are using external devices or folders (other than "Music") to synchronise music to your phone, you have to enable access on a Mac software. To do this, go to File > Allow Access to Folder.
- Why does Storyteller on my Lumia tablet pair automatically with my phone's Lumia Share app?
- Does the Lumia Share app work on all Lumia phones?
- Does the Lumia Share app work in all Wi-Fi network environments?
- Is there a way to share only some images with the Lumia Share app on my phone?
- Can I disconnect the sharing connection in the Lumia Share app on my Lumia phone?