Weird graphical artifact that spreads to entire screen

hey folks.

i keep getting this weird graphics glitch/artifact when playing the game, it starts out small, but eventually fills the whole screen while playing.

“PC Spec”
OS : Windows 10 Pro-64bit
Mobo : Asus Maximus VIII Ranger
CPU : Intel Core i7-6700K
GPU : MSI RTX 2080 Sea Hawk
RAM : 16gb
Storage : 120gb and 240gb ssd

here is an image of the following bug.