Hi guys, late to the party but this thread is still being looked at and is still useful. I want to note than none of the aforementioned solutions worked for me however I went back into Blender, applied a weighted normal modifier (with kept sharps applied) and then made sure to double check my unwrap (making sure that where…
Nope, everything is unwrapped, 100% sure. I've already solved the problem. Those artifacts appeared because my lowpoly was too far away from highpoly at that places. I just squeezed it closer and the black shading disappeared)