I am not sure when this graphical issue occurred as I didn't notice it in my previous 2 seasons but it might not show up on the white Williams.
I've captured a video in light rain but the issue actually starts before the rain begins. (Giving you warning that rain is coming)
On the hood of the car you see dark streak flying by.
On the halo you get white flickering in line with these streaks.
On the rear wing again the same streaks on the hood can be seen flying by.
PC - Steam version build Nov 9 2018, 1541819448
Motherboard ASUS Sabertooth X99 onboard sound in use. Uptodate with Bios version
Realtek audio drivers updated to latest (Microsoft signed 11/4/18, Ver 10.0.17134.1)
GeForce GTX 1080Ti (drivers 416.94) G-Sync enabled.
Intel Core i7-5930K 3.5GHz
Kingston SHSS37A 480G SSD
ASUS ROQ PG279Q via displayport running at 2560x1440 at 144Hz.
F1 2018 Version 1.14
Lead up to problem:
Occurs when weather is changing. Problems occur a few laps before rain begins.
No error message
Xbox Elite Wireless Controller
I have tried:
Verifying integrity of game files
Video from GP mode (light rain) to demonstrate.https://youtu.be/LGokkCk9mEM