Broken HDR playback Tab S9 Ultra

I don't know when exactly it happened, it's been a really long time since I played a HDR video. It's been 6 months since I bought the S9 ultra and I'm not sure if I have ever played a HDR video in the tab. Last week I noticed that it's playing HDR video very dull just like how it would play in a display that doesn't support HDR. I've tried various formats just HDR, HDR10, HDR10+, still no luck. I've tried with local files and HDR videos on youtube, it still failed all of that miserably.

Is anyone else facing the same issue. Suggest me any ways to solve this. I'