Sonos app not working with IOS17.4 beta

Yes, remove or revert to an earlier Beta version. The whole point of betas is to allow companies and individuals a chance to test before general release. Likely Sonos are testing the Beta version you are using. One of the conditions of that Beta program is the acceptance that some software may not yet be compatible.
17.0 public Beta works fine for me, although I’ve not tried Trueplay tuning yet. 

Same problem for me. iOS and iPadOS 17 Developer Beta 4 together with the Sonos App version 15.6 results in a black screen after starting the Sonos App. For now I use SonoPhone app and Home Assistant to control Sonos. 

Sonos, as with many other companies, don’t chase ‘beta’ versions of operating system software for compatibility issues, only final releases. 

Allow the app a minute or two to load; it is functioning for me. 

Start the app.

Turn of the iphone and turn it on. The app is on.

I mean by that...turn of the screen en turn on again.

With the power button.

Then the app works

This worked for me. Nice one!

I found out it’s something to do with Location Services If you run the Sonos app then come out click into Apple settings Location services switch off Precise location in Sonos then check back to Sonos app it shows up 😊 leave the app open it with work fine or if you feel you do not want to run Sonos like this then return back to Sonos location services and click back on the precise location button

Thanks Norman71 that worked perfectly for me

Thanks Norman71, this one is a winner! Was super frustrated yesterday