Lora extracted from Ernie Image Turbo. Reduces diagonal grid artifacts but doesn't always eliminate them. Sometimes (1 out of 10 times) causes severe deformities.

Lowering lora weight, even slightly, reduces the prominence of grid but increases deformities. For some reason, cfg should be at least 3. At least 9 steps should be used.

The settings I used for those previews (least deformities, less prominent grid) are:

Strength: 1.0

Steps: 12

Cfg: 3

Edit (found better settings):

Samples/Scheduler: dpmpp_2s_ancestral+linear_quiadratic

Steps: 6