Notice that on Reddit thread there's a schedule that pushes into Nov... but no mention of album art... HD banners etc…

After a couple of days it's all stable, but load up initially is nowhere as sharp as previous version and the Sonos Favs 'generate' rather than 'appear'… Hmm 

'Line in' section of 'your sources' remains hit and miss if it appears/populates on app load or not without a significant lag...

Lag is often an indication of your Sonos device having trouble connecting to your controller. 

Have you read the wifi interference FAQ?

Have you performed a simple network reset, by unplugging your Sonos from power, then rebooting your router, waiting a couple of minutes before plugging back in your Sonos? 

Have you submitted a system diagnostic within 10 minutes of experiencing this problem, and called Sonos Support to discuss it?

@Airgetlam Myself and others... Have you read 

?

Yes, I have. In addition to using my own system daily for playback. Not everything can be blamed on a single issue, unfortunately, although it does seem a large portion of people want to. 

However, I worded my response quite carefully. It allows for the possibility of many different reasons as to why there might be an issue, and attempts to cover many of them, while providing a feedback loop if none of the offered options help. 

after the 16.4.2 update my airplay has stopped working. I can see the speakers but won’t connect

In the past, when I had this issue, I rebooted my iOS device (which most often fixed it), my router, and finally the Sonos devices. 

Another annoying random EQ setting reset on the app, at least 24 hours after the recent app update. Trueplay turned off and everything set to zero. Also the first time noticed that the “always play spatial music when available” setting had been turned off. 

But golly gee whiz the new colors for the Trueplay tuning process? That's an important app feature for sure....