marmoset normal map bake problem

Edward09

hello people, I've just tried to bake normal map for the first time in marmoset, and it came out like this 
I got a correct one with another stone model, but two of them have problems, as you can see there is a bad artifact of my uv wire frame there 

Edward09

Edward09

Alex_J

Soften edges/apply smoothing to the low-poly model before baking.