Downloaded songs gone after update

[honzavohralik]

Hi,

im a premium user of family Spotify and was having no trouble with the app till today. My phone was updated, not sure when, and out of nowhere all the downloaded songs (over 500) disappeared. 

Now im redownloading it, which really takes a long time and i dont want this to appen every time, there is a update.

Can someone help me please? I tried searching similar topics, but nothing solved.

Thanks in forward