Chromecast issues after last update.. (beta)

Is there a way to downgrade? Chromecast is completely broken in my house now… First all devices were unavailable, so I had to re-add them and fix over 20 flows. After that I found out that Homey doesnt’t cast anything. TuneIn, YouTube, website etc, nothing works. Is have 5 Chromecast enables speakers, which all worked flawlessly before.

I can adjust the volumes etc now, but can’t cast anything. The devices to receive something but somehow can’t manage to play it.

I re-added the devices twice, uninstalled the Chromecast app entirely from Homey and installed again, also tried the beta. Turned off all my devices from power and even restarted my router.

I just want to revert to the build before the TuneIn function. That one worked great and I used a Radio app from the Store with it. This is completely broken now and unusable…