trueplay missing

Sonos, are you there?

As many others, I suddenly find myself unable to tune my Era300 pair.
Trueplay is missing in the new app.
The old app now fades Trueplay  out, saying “there is a new version of the app, update”.

Beyond ridiculous. Your mindless update made your hardware lame. Just how difficult can it be to add a button to an app???

Sonos era 100 (pair) & Sonos Sub Gen 3 for sale 

Gosh, Sonos are so annoying!!!! 

Moderator Note: Modified in accordance with the Community Code of Conduct.

I’m done with it, going to buy the Samsung q990d. Bye

Downgrading to an older version of the sonos app doesn’t work either, trueplay is greyed out.

If anyone desperately needs it, here is how to activate/deactivate trueplay via uPNP API / HTTP:

POST http://YOUR_SPEAKER_IP:1400/MediaRenderer/RenderingControl/Control

...
Content-Type: application/xml
SoapAction: urn:schemas-upnp-org:service:RenderingControl:1#SetRoomCalibrationStatus
...

<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
  <s:Body>
    <u:SetRoomCalibrationStatus xmlns:u="urn:schemas-upnp-org:service:RenderingControl:1">
        <InstanceID>0</InstanceID>
        <RoomCalibrationEnabled>1</RoomCalibrationEnabled>
    </u:SetRoomCalibrationStatus>
  </s:Body>
</s:Envelope>

The RoomCalibrationEnabled node controls the TruePlay state.

Same with me. Every time I need to reset and relogin to get my settings work. This is happening from few days after new app 

I have another new issue now, the volume drops to zero without any input from the app. Just gets better🤦

@Ummagumma 

Me 2, was listening to music and volume just dropped to zero. I've also had speakers shown a green status light and when I've gone to the app the volume is at zero, slide volume up lights go out

All this is so annoying and still no trueplay button for Android users so unable to tune my Era speakers 😒 

I have an iPhone 14 Pro Max and after updating to the app, not only is my true play toggle gone, but I no longer seem to be able to play a movie with Dolby Atmos as well.  Dolby digital plus 5.1 comes on now after the update????   Nothing changed in my wiring, the setup worked before the update and now doesn’t.   Sonos, please revert to your old app is it worked well and from all I’m reading about this updated app, you should scrap it and start over again.