I'm sorry to hear that! Just out of curiosity, do you have the Chromecast device plugged directly into the TV via HDMI, or the soundbar itself? If it's plugged in like Chromecast ---> TV ---> ARC ---> Sound bar, try plugging it in like Chromecast ---> Sound bar Input | Sound bar output ---> TV. That will see if the issue persists without ARC, Or vice-versa if your setup already has the Chromecast plugged into the Soundbar.