Cast stopped working after disabling the default launcher

[leira]

On a Chromecast with Google TV device, I disabled the default launcher after installing flauncher, following the guide in the readme. After disabling com.google.android.apps.tv.launcherx and com.google.android.tungsten.setupwraith, now the launcher is set to flauncher, worked as expected. But there is a problem, Chromecast casting stopped working. Actually the casting still worked right after the 2 packages are disabled. But it stopped working after the device is restarted. Re-enable the 2 packages made casting work again. It seems the cast receiver process is stopped with disabling the tv.launcherx and tungsten.setupwraith. Is there a fix or workaround for it?