SHARPEN AI: Noise Suppression Increases Noise or Adds Artifacts

In Sharpen AI, often when I increase Noise Suppression, the noise gets much worse, not better. Or maybe those are artifacts. Either way, NS doesn’t smooth things out.

The images are often bigger, from 36MP to 100MP.

And the noise/artifact patterns varies depending on if I’m using GPU hardware acceleration or just the CPU. It seems to be better with CPU.

Please help.
Thanks!
Mike

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