Green rectangles diagonally across images displayed in Safari

I have the same problem on my MacBook Pro 15" 2013 model.

I do not use an external monitor.

The issue happens across MANY websites in Safari, not just bbc.

The problem seems to occur more if I use my discrete graphics card (NVIDIA GeForce GT 750M 2 GB).

I have this problem with each OS update. I can see it in Photos and when I try to send images in Mail. Something it is a zigzag diagonal across the image. Other times it is a black or green rectangle in the image. At times, I can edit the image again in Photos and then export and fix it. It seems to happen when I am editing lots of high resolution images.

Raised with Apple Support allocated Case Id 101420288005. Boot in "Safe Boot" and the problem does not show. Removed EOS Utility and SpyderUtility as Login Items as advised by Apple. This does not correct the problem either. Telephone call with Apple Support technician and they advised raising with BBC News website, as this appears the major user of this HTML feature which Safari/NVIDIA GPU are unable to process correctly.

I've noticed it on Google Images too. So I am going to provide further information to Apple.

I have that same jagged green line and sometimes a large black rectangle on exported JPGs. Sometimes they show on import and sometimes they only show once I put them into an email. Other times I reimport and get a clean image. I had 3 out of a batch of 55 images have this problem. I have had it off on for years. It always seems to be with RAW images. I thought it had to do with a full Photo Library, but even after clearing the library, this problem happens. If I shoot JPGs instead of RAW, I don't see the problem. Repairing the library doesn't help. I have macOS Catalina.

The websites which appear to give Safari and the NVIDIA GPU a problem are:-

BBC News

en.wikipedia.org

womanandhome.com

huffingtonpost.co.uk

dreamstime.com

twitter.com

huffiest.com

menshealth.com

beyazperde.com

alma.com

I'm having the same issue, Mac Pro with a Kepler video card and Dell U2311H monitor, running Big Sur. Some images in Safari are displaying with the diagonal green boxes. Save the image to disk and open it in Preview and it's fine. Same website opened in Firefox displays fine. Multiple websites, doesn't seem to be any rhyme or reason.

As a Professional Photographer this is unacceptable. I just upgraded to macOS Big Sur version 11.6.5 (20G527) and using Safari Version 15.4 (16613.1.17.1.13, 16613). Checked for updates and I have the latest.

MacBook Pro (Retina, 15-inch, Late 2013)

Thunderbolt Monitor Purchased with my MacBook Pro in 2014.

Using my Thunderbolt Monitor, here is the photo as shown in Google Photos. Note: NO GREEN BOXES

When I choose the first photo on the first row still using my Thunderbolt Monitor in full view from Google Photos using Safari I see the following. BUT it is not all photos. Why?

When I down the image to my mac and open it in Preview using my Thunderbolt Monitor it does not show the green boxes. See screenshot below in Preview:

When not using my Thunderbolt monitor and just my macBook Pro, the GREEN BOXES are gone.

This was not this way before I upgraded and frustrating as I use the Thunderbolt Monitor to edit my photographs.

Please advise.

Thanks,

It's happening on my MBP 15" Mid 2014 with Big Sur. It's curiously happening on some images in Safari, but also images in Zoom. Maybe it's something with the GeForce GT 750M?

Like others below, I upgraded to Big Sur and the green rectangles appear across the BBC images. I am using a MacBook Pro late 2013 and updated to Big Sur on Friday last week (5th March) I am regretting doing so as the time it has taken to sort where files went and so on, has been large.

(Nearest Apple shop is 160miles from here, or 320 round trip!)

Jonathan PC Golspie

I'm also experiencing this issue intermittently on my MBP running Safari Version 14.1.2 (16611.3.10.1.3) as below:

MacBook Pro (Retina, 15-inch, Late 2013)

NVIDIA GeForce GT 750M 2 GB

Big Sur 11.5.1 (20G80)

When the problem surfaces, all thumbnails on the right of BBC News articles (example) render incorrectly

Glad I found this thread because it's been driving me mad!!! MacBook Pro (Retina 15-inch late 2013) running Big Sur 11.5.2.

Happens on pretty much all websites and appears worse when the system is under load. Definitely not a problem with the websites as they work fine on all other browsers, just Safari shows up the issue.

Really annoying, mainly happens on random images on Amazon.co.uk.

Never happened before Big Sur, would downgrade if it was easy ....

Hey folks, I have the same issue on several websites using safari. I checked the same website on Chrome and they look fine.

Check out the screen capture attached.

Safari Version 14.0.3 (16610.4.3.1.4)

MacOS BigSur 11.2 (20D64)

MacBook Pro (Retina, 15-inch, Mid 2014)

NVIDIA GeForce GT 750M 2 GB

Please help!

I was hoping that Apple support would have kicked in by now... but I see they don't have any answer beside blaming somebody else.

I just updated my system to 11.2.3 (20D91) and the problem is still there!

Thanks Apple Support for your help, definitely we made a huge mistake in upgrading to BIG SUR!!

now on Mac OS 11.4 and still have this same issue (MBP late 2013 GeForce GT 750M 2 GB) - I'm not using an external monitor, and yeah, the issues of the green rectangles across images is only seen in Safari - No issues with the same web page images using Chrome or Firefox