OK people hey not to be grave digging but I just found a solution to this. Okay I just added 2 XFX RADEON RX550 video cards to my Motherboard and Unreal engine Kept Crashing on Conan Exiles and Other games with Unreal. For Conan Exiles it was 2 problems, one being too many mods and it needed to be in Windowed full screen mode. For all other Unreal games put it in windowed full screen mode and Disable Frame Pacing in Radeon settings and also Disable OpenGL Triple buffering. You will find those 2 settings when you click gaming in radeon settings and select the game where you enable AMD Crossfire mode for each game.