Since updating to Big Sur I have a strange issue with viewing some web pages on the BBC web site. On some of the pages that have a separate story and importantly a feature section i get a set of diaganal green rectangles.
When view using Chrome or Firefox there are no green rectangles.
The url for an example is https://www.bbc.co.uk/news/technology-55079454
Which to me looks like this;
Thanks in anticipation.
Dave.
MacBook Pro 15″, macOS 11.0
You are correct that it did show the green rectangles when viewed with Safari, until I disconnected my thunderbolt display and used just my macbook display at which point there were no green rectangles. But I agree that when using chrome or firefox with or without thunderbolt display the image is okay. So in my case it seems to need both Safari and Thunderbolt.
You are correct that it did show the green rectangles when viewed with Safari, until I disconnected my thunderbolt display and used just my macbook display at which point there were no green rectangles. But I agree that when using chrome or firefox with or without thunderbolt display the image is okay. So in my case it seems to need both Safari and Thunderbolt.
It’s definitely related to using the external monitor. When I unplug it the problem goes away.
I can actually be more specific here. If you open the attached image in Safari, it displays incorrectly. In Preview and Finder is ok. Also ok in Chrome, which suggests it's probably a Safari / WebKit issue.
I'm getting it too. Late MBP from 2013. No external monitor. Sometimes the green squares go away when I open it in a new window, sometimes not. I'm just getting annoyed with it.
Yes I have the same issue, since I upgraded to Big Sur, on several websites on compressed size promo images on several websites not just BBC. My 2013 MacBook pro is not ever attached to an external monitor.
Just to add another to the list...
MacBook Pro (Retina, 15-inch, Late 2013) running Big Sur 11.1using an external monitor (Dell 2715H)
See this often on the BBC website (though elsewhere as well).
https://www.bbc.co.uk/news/uk-england-london-55764673
same url same problem Macbook Pro 2013 late - on Macbook Screen - but another monitor is connected too.
I get the same green rectangles on some images on several websites. I'm using an external monitor (Dell U2713H) with Big Sur.
I suddenly started to get the same today. Never had an external monitor connected. MacBook Pro 15" Mid 2014, Big Sur Beta 11.2
So this isn't necessary related to external monitor
I reported this defect to Apple, we'll see how quickly it gets looked at.
It's just dawned on me that it might have something to do with my thunderbolt 27" display so I unplugged it and used just the display on my MacBook pro and sure enough the MacBook Pro on it's own is fine.
Green rectangles on some images in Safari
