Samsung TV - No Sound (Spotify Premium)

[pi_formance]

Country: Canada

Plan: Spotify Premium

Device: Samsung TV - UN55MU6300

TV Firmware/Software Version: T-KTMAKUC-1270.3, BT-S

Spotify App Version: 1.7.2

Hi there,

Since about a week or so there's no sound when playing music on the Spotify app on my Samsung TV. I can see the song is playing but there's no audio output. This has never been an issue in the past.

I've seen threads from people with similar issues here (e.g. https://community.spotify.com/t5/Other-Partners-Web-Player-etc/Samsung-Smart-TV-song-playing-but-no-...). I tried the suggested resolution without any success including unplugging the optical audio cable from my TV that I use to connect to my soundbar and just using the TV speaker/audio. 

Can anyone here help me?