I bought the AOC G2260VWQ6 75Hz monitor to pair with my RX 480 4GB and FreeSync works incredibly at 60Hz. However, once I change the display refresh rate to 75Hz I get black flickering (not just regular flickering but the screen would actually flicker black) on games like The Witcher 3 and Total War: Warhammer. I found out this is a FreeSync issue because when I turn off FreeSync the black flickering stops. It's really odd because FreeSync works perfectly at 60Hz refresh rate but not at 75Hz.
I've clean installed the latest AMD driver (17.4.3).
I've installed the beta driver for the monitor that expands the FreeSync range from 48-75Hz to 35-75Hz.
I do admit that I am not familiar with FreeSync monitors and AMD products in general (I used to be an Intel+Nvidia fanboy) so I could very well be overlooking something here. I was wondering if perhaps someone from this subreddit can help me out?
tl;dr FreeSync works perfect at 60Hz but bugs out at 75Hz on a 75Hz FreeSync monitor.