[SQUARE GRID ARTIFACTS ON WINDOWS] - Click here if you get this

I don’t mind others seeing my images. I’m just not sure how I should do it. My RAW files are rather large, around 50MB. The TIFs are even larger. I don’t have a file sharing service.

Here is an unedited file that I converted to JPG 3680 long side using LR.

I ran it through PhotoAI and got these tiling artifacts. Note I edited this file in LR to adjust levels. The lighter background makes the tiling more evident, although it is visible in the unedited version.

Note: I ran the JPG through PhotoAI and still got the artifacts, although they were not nearly as evident.

Thanks for your efforts.