Photo AI 3 destroys B&W image while Gigapixel 7 works fine

[Please describe your issue here. Try to include logs (Help → Logging) and add screenshots if necessary.]

Steps to reproduce issue:

Same B&W photo handled by Gigapixel 7.2.1 woks great to increase two-fold the size of an image. That same image with Photo Ai gets destroyed when enhanced : horizontal blurred lines

Topaz Photo AI [v1.x.x] on [Windows/Mac]

Would you mind sending in some more information to get a better understanding of the problem you are having with this particular type of image? Please send the following information:

  1. The original image file.
  2. The processed image.
  3. A screenshot or description of the settings panel so I can see what adjustments were turned on.

You can securely submit your image(s) to my Dropbox using the link below.

Dropbox File Request

Please be sure to send me a note to let me know you sent something.