Apple

Hi, I’ve got my AppleTV 4K for quiet a while now, about half a year (It’s the newest model), and I’ve been using it as my main streaming box, and I’ve always been able to use the included Siri Remote to change the volume on my the tv (an OLED C1), no matter what hdmi input I was using, but from one day to the next, it simply stopped controlling my volume, and that was about 1 month ago, and since then I’ve tried loads of things (resetting the Siri Remote, changing the hdmi cable, change the hdmi port, factory resetting the entire tv, and also going through both the tvs and the appletvs settings and trying out certain things) but it wont work, like at all, sure the Siri Remote works if im using my AirPods to listen to something playing on the appletv, and I’ve also recently discovered that its working if I use it to control my HomePod mini, even through eARC (I’m not using my only HomePod mini as a soundbar, I just tried it out once, the sound quality is inferior, at least when it comes to voices) but besides using AirPods and a HomePod, it simply wont work on the TV itself anymore, does anyone have any solutions to the problem? Pls I could really use the help, and ill tell u wether I tried that solution already or not, thanks in advance already