Bug on Summer Season

Hello, I want to ask why my Forza Horizon 4 has bugs such as overbrightness during the race, and blank gray sky, it all happened in the summer

https://cdn.discordapp.com/attachments/519125278140661763/860617964154650654/unknown.png [Gray Sky]
https://cdn.discordapp.com/attachments/519125278140661763/860124283690549248/unknown.png [Over Bright]

Some people say that it happened because of HDR issue but, my monitor doesn’t have HDR feature by default. Here is my PC Specs

CPU : i5-7500
GPU : MSI GTX 1060 3GB
RAM : 1x8GB DDR4
Monitor : Samsung S20D300 [1366x768]

Any problem on my processor or something i don’t know?