Latest ipad version gives no sound output

[EPG93]

I've updated my spotify app with the latest release last night. I'm a premium account on latest ipad with ios 9.2.1

Since then there's no sound out of my ipad speaker whereas they're fully fonctionnal on some other apps. Streaming to a bluetooth speaker gives no output neither. However streaming looks fine since the progression bar is moving as usual.

I've deleted and reinstalled the app but the issue is still there...