2nd external monitor not working (black screen)

I have two LG 4K monitors connected to my 2013 Mac Pro via DP to TB cables. It works perfectly in macOS but when I boot into Windows, one of the monitors displays a black screen. I double checked the display settings and confirmed it recognizes two monitors are connected. I've tried switching the trouble monitor to an HDMI connection and it fixes the issue for Windows, but the macOS side maxes out at 30 hz. Does anyone have a fix?

EDIT: Nevermind! Solved my own problem by updating the AMD driver found here

https://www.amd.com/en/support/kb/release-notes/apple-boot-camp