Scrobble on Last.fm while iOS device is locked

[Salom]

Should the iOS version scrobble to Last.fm while the app is

1. on online mode,
2. reproducing an offline list,
3. the device is locked and
4. on I am on a cellular network?

I've read many old posts recommending to reinstall the App but before doing that and having to synchronize all my songs again I wanted to make sure that in my conditions scrobble should work.

I have an iPhone 6, latest iOS, latest Spotify version.

[MattSuda]

It should work.

I suggest you test it out and then check your scrobble history just to make sure. 

[Salom · Accepted solution]

On Twitter, @SpotifyCares told me that I had two Spotify accounts linked to the same email which I had absolutely no idea, one was Premium the other one free. They closed the free account and at the same time I reinstalled the App.

I still have to try during a long car trip but so far the last 4 songs were scrobbled without any issue.

[JJMG]

Hm I just realized scrobbling isn't working for me either.  From the desktop version, the mobile version, or the web version of spotify