Downloaded content disapearing

[OK45]

Hi ! For the past few weeks my spotify library had gone crazy. My downloaded songs keep disapearing and i have to download them again. Sometimes i just need to tick the 'download' button and they will instantly be available, as if they were already on my phone but not indexed. Is there a fix of some sort ? Reinstalling and clearing the cache won't help. This is, obviously, frustrating 😛