This is a very, very simple fix. Instead of using stairs, use a plane, a slope as you are saying. This will help the abrupt camera movement too. If this isn’t the problem and you are already using a plane, (or a modified cube), try messing around with the character movement component, maybe something with the max step height or something. But only and only after you try using a plane or a modified cube as collision, and not plain stairs. And if you are using a slope, you are in big trouble, as the camera movement is kinda odd too. Wait, actually, I see what the problem is now. You ARE using a plane, but and the abrupt movement seems to occur at the ends of the slope. In that case, there isn’t much to do except use normal stair collision and change the max step height. Just mess around with the character movement component and it will be good. Getting movement right is a very tedious process