Is there a way to solve this ? It only happens when I`m rotating the camera.
It’s the motion blur. This plagued me on a past commercial project. Rotational Motion blur doesn’t play well with emissive. I disabled motion blur and that solves it. There is supposedly a better solution now or coming. Epic made a improvement to radial motion blur for the car project they showed at GDC, but I have no idea where that is at now.