Has anyone else seen this issue? I think it started happening after I first installed Big Sur (beta back then) on my 2014 15" MacBook Pro. A diagonal series of green rectangles across images. This happens to some images on random web pages, if I do a Google image search I will likely see a few like this, and today I saw it on an image in a PDF in Preview. Closing the page and reloading, or following the link to the full size image will usually get rid of them, but I don't know why I'm seeing them in the first place.
I've done some searching online and a few people report seeing them in iCloud image previews etc, but I'm seeing them in more places than that.
These are a couple of examples from a Google image search in Safari:
I've done some searching online and a few people report seeing them in iCloud image previews etc, but I'm seeing them in more places than that.
These are a couple of examples from a Google image search in Safari: