Soldato
i really hope one day they will fix the flickering in fifa 18 during cut scenes its been going on for a longtime now and was even present in 17 for me also, it's literally the only game i have this problem with and on two different cards too my 480 and the vega 64. never had the issue in game with my two 1060's, 1070 or 1080. so it it really is a amd issue.
This with Freesync monitor? What in game settings you have FPS set to? 30 or 60fps on cutscene with drop FPS to 30fps the unlimited option with not do this but you will need to force Vsync or use FRTC to limit FPS to monitor max refresh rate.