Maybe try another iOS device if you do have one available, or if no joy with that, then it maybe best to reproduce the issue(s) seen and immediately submit a Sonos system diagnostic report from within the Sonos App, note it’s reference and contact/chat with Sonos Support Staff via this LINK and see what the Staff can perhaps suggest to help you to resolve the matter. They may get you to factory reset the speaker, but perhaps see what they say.
After 3 factory resets it finally saved.
