Black Seams When Rendering Normal Maps in Cycles as in the images appears: the first picture is the bake normal and rendered, and as you can see it appears some "seams" around it and with a low height, and in the high poly model you can see the height that it has, so what could be the problem? i ensure that the simple node setup its fine and correct setup.



this pictures shows the optimized model,baked normal, and node setup




this is how it looks all the high poly model details...
It's just a problem with the aliasing, Blender can't bake with anti-aliasing, you need to bake a  very large texture and downscale after to reduce aliasing, or try your bake with xnormal or other software