Set up lights before using Enhance with AI
Set up your lights first so Enhance with AI turns your render into a photorealistic image without drifting geometry.
To get a good photorealistic result from Enhance with AI, first take a render preview or a free HD render and set the ambient light or basic light holders in place.
Given a properly lit image, the AI converts it to a photorealistic image with virtually no drift in geometry.
If no lights were set, or the image is washed out from too much lighting, the AI can still improve it significantly but without guidance about where the light should be the result may not be what is wanted.