Samsung Multiroom - Spotify Connect Autoplay not working

[npong]

Plan

Premium

Country

Sweden

Device

iPhone 8, Macbook Pro late 2016, Samsung R1 Lite, Samsung Soundbar K650

Operating System

iOS 13.5.1, MacOS 10.14.6

My Question or Issue

Can't get Autoplay to work when using Spotify Connect with my Samsung Multiroom devices, the playlist just stop after the last track. 

Tried with AirPlay speaker - no problem, tried with Spotify Connect on a Sony Speaker - no problem. Doesn't matter if I try it from my MacbookPro or from my iPhone, the Samsung devices (R1 Lite, K650) won't work with autoplay. Any help would be great,

Thanks!