Hi @Parsnip62
Thanks for your post!
Sorry to hear of this issue you have been having with the Now Playing screen in the app not being fully up-to-date with activity on your system.
The issue you describe is, I think, indicative of the app and speakers not communicating effectively with each other. So, I think the best course of action is to give them the best chance of doing so.
Please turn off your Sonos products by unplugging them from power, then switch off your router for at least 30 seconds, then turn it back on. While you wait for WiFi to return, please instruct your phone/tablet to restart too. Once WiFi is back up, turn on your Sonos products again. Wait for the flashing white lights to stop before opening the app.
Test, and if things remain the same as before, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.
I hope this helps.