I've had both the colour flickering and black flickering, I haven't experienced the colour flickering since the first Vault, but I also turned off the HDR Autodetect after that first experience and switched the Frame Buffer to Compressed, rather than Half16 (which is apparently a mode almost exclusively used by HDR rendering).
I'll try switching from FXAA to Temporal AA and see if that helps.
Switching AA off entirely makes the game look far worse, it seems that Frostbyte doesn't like running with no AA at all.
Frame-rate is good with basically everything turned up as far as it goes. Sitting around 70 FPS at 1440p with my GTX 1080.
Thankfully I haven't experienced the flickering in combat, it's almost entirely limited to "in-engine" cutscenes and conversations, but it is distracting.
Having tested Temporal AA now, it works just fine.
No more random flickering, but fire effects don't always seem to play nice (blowing up the landing pads in the Kett strongholds on Voeld looked really odd), but that may be an issue with me alt-tabbing regularly. I haven't seen anything resembling my previous flickering issue since switching to Temporal AA.
