When I liked/disliked a song a on my phone there are issues with sync liked songs in other devices(like PC). The problem is even bigger:
1. Listen to spotify on PC
2. Sync iPhone with spotify on PC
3. Play a song on iPhone, which is liked on iPhone, but not on PC
4. App on PC crush.
It's 2 years since first report and the problem still exists.
Do we really need to get 100 kudos to have a Spotify fixed in a such basic thing?