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bertie343

macrumors regular
Original poster
Dec 23, 2011
100
28
Ever since I upgraded my mid-2014 15" rMBP to Sierra, I've noticed that when loading websites in Safari, a patch of black will sometimes appear where another color is supposed to be. Example: https://puu.sh/rgvfo/53dd7fa8c6.png

I cannot recall if this has happened in other programs, I want to say it may has happened once or twice. In the case referenced above, simply refreshing the page returns everything to normal. Has anyone else experienced this? Is this a sign of an underlying hardware issue? Hoping not but I have the time to go to the Apple Store this week if need be.
 
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