horizontal colored lines appearing in PS and LRC

[paolofus]

i recently bought a mac mini2, installed PS and LRC, and started working on my photos.

Now, randomly, when i finish editing a photo on PS, evertything looks fine.. until I save the photo.
The very nexy moment, the photo has a horizontal colored line, that appears in PS, LR, Finder preview...

In one occasion, the line has disappeared for no apparent reason.

I'm going crazy...

[dj_paige]

Sounds like a corrupted file. This is almost always caused by hardware malfunction (hard disk malfunction would be the most likely cause).

Try restoring the photos from their backups. Run diagnostics on your hard disk.

[paolofus]

that could be an option.

it only happens when PS saves its new file, a psd from layered raws, though

[dj_paige]

I still believe this is a hardware malfunction somewhere. However, I think you should post in the Photoshop forum and not the Lightroom Classic forum.

[paolofus]

i've run the "S.O.S" diagnostic from Disc Utility , non problem identified