HDR trouble

Hello guys i have this problem with my xbox one x and hdr. So In forza 7 and forza horizon 3 when its sunny and sun shines on cars the car colors turn kinda white looking or really light, I mean that for example with a car Audi #45 Flying Lizard Motorsports R8 LMS ultra those light gray parts of car turn white when sunshines hit them. When it isnt sunny game looks really good can somebody please help me? My tv supports everything and everything is checkmarked green, i think that problem is with forza games because assassins creed origins looks really beautiful all the time.

Did you adjust the HDR settings ingame?

Edit: I just tested this myself, and i can confirm that on 3 of the 4 HDR presets my LG TV has the grey turns white. Only HDR game mode (which im playing in) isn’t effected. Tested this in Dubai where the helicopter is flying. The HDR ingame settings i adjusted right before the test, so there is definitely a problem.