Bluesound

Same experience here with the latest upgrade. I also have some Marantz (HEOS) - no problem. Firestick driving a Sonos Beam - No.problem. And of course native Amazon devices - no problem. So looks like BluOS side API to Amazon got AFU'd in the upgrade. Or the upgrade is pounding the Amazon gateway into overload with what would resemble a DDOS attack. Either way, it all points back to BluOS. 

I am having the same issue with my Bluesound Node streaming Qobuz.  I keep getting lost connection, request timed out, or could not load content messages and the player hits a brick wall and has to be unplugged and rebooted.  The tech support at Bluesound seems to care but none of their suggested settings have helped. They seem to blame it on everything else other than their app or operating system. I’m done with Bluesound, going to try a Wiim Ultra next.

I sometimes see this on my Node/Qobuz, but it doesn’t affect performance.