Chromecast not working

[Barraguesh]

I try to cast to my Chromecast TV (it's a Sony TV with Chromecast built in, Android TV) but it doesn't work, it kind of loops, the screen on the TV is black all the time, and then it drops it.

I saw in some forums that Android TV casting is not supported anymore as each TV is different, I see the option to cast to the TV but also the Chromecast function is detected and that's the one I try to cast to. Available options of casting: https://imgur.com/euNubm9

[Barraguesh]

Bought a Chromecast 3 and I can cast without problems from my Android phone, but from the Flatpak app, now it doesn't even get detected when searching for casting devices.

i can confirm it does not work for me as well. in the non flatpak deb version, it works fine, but on flatpak ver chromecast doesnt work