No matter what you are casting to, no matter from which device/application, the shuffler chooses ~50 seconds closest to the song you are starting out with -- depending on how you have it sorted. So if I have sorted by most recent, and choose the most recent song, the following 50 songs are in a continuous shuffle loop and that's it.
There's not much point to giving people a library if we cannot listen to the whole library of music.
This has been a woefully disappointing example of amateur software development for all the years I have been using Spotify. And while I love Spotify anyway, and have adapted, it's really irritating. No other music application that I am aware of has this sad, pathetic issue.
Is there any hope of seeing it fixed? Is this really so difficult a problem to solve?