Does anyone else have this problem?

A horizontal line that appears on high res' images, usually 2000px and above when clicking the 100% button. One way to remove it is by moving the slider to its maximum setting and then clicking the 100% button again, or by dragging the image and line off the viewing pane where it will erase itself and not return until the image is opened again.

It did this on earlier versions of Gwenview as well, so maybe it's a known glitch that hasn't been fixed yet.

Thanks.

Yes, exactly the same thing happens to me. Fortunately, I found your post after spending some time wondering if my camera was at fault - so thanks for your post.

Below is the effect I get - as you say, it disappears when I scroll the pic away from the area with the horizontal line and then scroll back to said area.

Since it is a known problem: Do NOT care. It will not be fixed...