have a problem figuring this out. I made a really simple mesh, and then applied Shade smooth, as you can see on the pictures I attached, some faces appear smoothed and others don't as if they were still flat, I checked the normals, and they are facing the right direction.

This only happens on Blender 2.8 Cycles, Blender 2.79 seems to work just fine.

I hope you can help me out, thanks in advance.

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