[RESOLVED IN V3.5.2] - SQUARE GRID ARTIFACTS ON MAC - Click here if you get this

Upscaling photos appears to introduce a grid structure, visible in dark areas of the photo after zooming in. This is only seen after upscaling.

Steps to reproduce issue:

  1. Step 1 Upscale photo
  2. Step 2 Zoom maximum in Apple Photo (or import in eg Photoshop and zoom)
  3. Step 3 Grid is visible in dark areas of the photo

Topaz Photo AI [v2.1.0] on [Mac]