Spotify rescan problem with v0.7.0RC5


I have updated MusicBox to the latest (0.7.0.RC5) version.
With this version I have got a problem with Spotify.
Every time I boot , hard or soft, MusicBox rescan my Spotify library as
it only did at the first boot after Spotify settings with earlier versions.
So now it takes very long time before I can start to play Spotify.
Is there something I have missed ?
With Spotify Connect it works.

My euqipmnt:
Raspberry Pi2 with HifiBerry Digi