A lot of users have the same problem, looks like it stopped updating about 5 days ago for most...
i have been emailing spotify support back and forth for days now and unfortunately they have no idea what they are doing or how to fix it. They keep telling to unfollow, reinstall, on, off, basically wasting my time because none of that worked.
In my opinion ( because it happened to a lot of users at the same time 4-5 days ago) its on their side and it's probably the latest update that caused it.
very disappointed and frustrated that they will have an feature but UNABLE to fix it when something goes wrong!!!
I wonder if fb's recent privacy changes play into this. I noticed when checking my 3rd party app permissions on fb that Spotifys permissions for my account had expired without my knowing. I dont know if authroization is tied into the feature but its been the only lead I've been able to find since going through the forums.
Going off skepticism, if FB pushed a change where all 3rd party apps had to be re-auth'd then could that possibly break the feature for Spotify users that have setup an account using facebook's cross platform login?
Here is the area, sadly I already re-granted it permissions