Artifact appears on impart of Sony RAW file

[Jon_p_Taylor]

I have been spending ages trying to track down a hardware fault (camera or card) and now I suspect that the issue is actually in Lightroom.

Below are two screenshots from Lightroom. Both of them are imports  exactly the same RAW file shot on a Sony A7RV. The first is clean, the second has a horizontal red line above above the heads of the figures. I had assumed this was a card or camera issue but now realise that the file is clean (also looks fine in Camera Raw and other apps). So I am assuming the artifact has been added during impirt, which feels weird.

I am running LR Classic 14.1.1 and Camera Raw 17.1 on Windows 11.

Has anyone else ever seen this?

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

[dj_paige]

These types corrupted images issues are almost always caused by hardware malfunction. There is some hardware malfunction either during import, or later during the display of the image. These include card reader problems, USB port problems, hard disk malfunction, memory malfunction, or GPU malfunction. You will have to diagnose the problem, which I realize will not be easy. LrC does not modify in any way your the image portion of your original raws, so LrC is not doing this to your photos.

[Jon_p_Taylor]

That's kind of where I was on this - very puzzled that Lightroom was causing the issue.

Card reader is a good point. That may well be the culprit. The issue is how to narrow it down to that somehow.

[dj_paige]

Card reader is a good point. That may well be the culprit.

And all the other things I mentioned may well be the culprit. If you import the same image via different hardware than this particular card reader, it could determine if the card reader is the problem.