Question Why does SLI cause my primary display to flicker rapidly but ONLY when using 3 monitors

Aug 29, 2020
I am having trouble with using two Nvidia Geforce GTX 1080s in SLI mode. I have three monitors and after a most recent Windows update a problem returned where a game running in Fullscreen on the Primary Display will flicker and flash repeatedly. I have changed SLI cables, I swapped the graphics cards positions, did a clean install of the drivers and even tried a a restore point for Windows but none of them work. Removing one monitor and only using two monitors "fixes" the issue as well. Once realizing that I removed one monitor and connected another one to see if the issue duplicates and it does. Two monitors SLI works perfectly, Three monitors a game in full screen constantly glitches out. What can I do?here is a list of my system specs

Motherboard: MSI MEG X570 ACE
Tower: Rosewill Thor V2
Graphics Card: 2xSLI Nvidia Geforce GTX 1080 Founders Edition
Processor: AMD Ryzen 7 3700x
Cooling System: CoolerMaster Master Liquid 240
RAM: 2x Corsair Vengeance RGB Pro 16GB DDR4 3200 MHZ
Power Supply: EVGA 850W BQ
Audio Interface: Focusrite Scarlett Solo 2nd Gen
Mic: Audio Technica at2035
Headphones: Audio Technica ATH-M50x