Bluesound

Further update WiiM Ultra.  I have continued to try break it.  Frustratingly, I searched for all Paul McCartney albums and it returned just 4.  Looking at Amazon Music on my PC, there are dozens.   I tried Paul McCartney and Wings and it returned No Results.  It looks like the WiiM implementation of Amazon is also lousy.  It would be nice if Amazon would build an Amazon Connect to get around these streamer issues.  So I am wondering if it is simply too difficult to use Amazon.  May be worth looking at Tidal Connect.  

I switched from Amazon to Quboz after the last software update crippled AMHD. Things that I thought were BluOs related are actually shortcomings of the streaming service itself. Sometimes I search for something under the artist name and nothing comes up, but if I search for the specific title it finds it, but it's still not showing under the artist releases.

I suspect the issue is with Amazon, not BluOs. Not enough servers, app updates not yet shared with external services,etc. If you like your Node, I would be a little patient. 

A simple workaround is to add what you want in the Amazon app as a favorite, then open it in BluOs from your library. Then you can save it as a BluOs playlist. 

This error popped up for me a number of times when I was trying to use Amazon Music - BluOS blames it on a faulty API on the Amazon side, and they don't have a fix for it. I had enough of the wonky Amazon/BluOS interface and switched to Tidal, with no similar issues since that switch. 

Using the Amazon app on an iphone or PC or through Carplay, it works perfectly well.  The problem clearly lies in the API/integration with BluOS.  Unknown is if it is software engineering at Amazon or Bluesound.  I may just try Tidal free for a month and see how it does and if Amazon/Blue figure it out by then.

If you're going to try another service, I would recommend Quboz over Tidal. You can get a free trial there as well. It just sounds better.