Why does my MacBook Pro screen briefly turn green while streaming videos?

"Why does my MacBook Pro screen briefly turn green while streaming videos?: […]This was happening when I first got the laptop last year and then a software update appeared to fix it. Recently a new update brought the issue back again. Do you think it might be possible to fix this through a software update? Or could it be a hardware issue?[…]”

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Being updates fixed this and then

brought it back, it’s likely a bug in the software update and nothing of a hardware issue. So, try reinstalling the macOS, backing up, first.

Reinstall the macOS:

Nothing would be deleted. It's just that items that have become corrupted or deleted, would be replaced or reinstalled back to where they should be. Go Here: How to reinstall macOS from macOS Recovery - Apple Support.

Important: Be certain to create a backup of your Mac prior to performing the reinstall. That way, you can have something to restore from the Mac from, should anything go wrong with the reinstall. Once reinstalled, try this once more, seeing if you still get this error.l

Get your Mac Serviced:

Yes. This Is a hardware issue. So, get this serviced. For the note, aside form Apple, you can take it to an AASP (Apple Authorized Service Provider)

A. Take to an Apple store:

You'd setup a Genius Bar Appointment at your local Apple Store, taking it in for service. There, it will be diagnosed, and you'll be provided with your options.

Or...

B. Take this to an AASP:

See an AASP (Apple Authorized Service Provider) in your local area...

Contacting an AASP: 

1. Go Here: Find Locations - Apple Authorized Reseller
2. Click: Service & Support
3. Enter: your location information
4. See: if there is an AASP nearby
5. Contact: an AASP that shows up, and find out more about the services that they offer to fix the screen.

"Why does my MacBook Pro screen briefly turn green while streaming videos?: When watching videos or movies, my display will flash green when there are cuts, especially from black. It will happen for 1 frame before it corrects itself. It looks like the display is trying to auto adjust when the scene changes but flashes green first before it goes to normal. It is extremely annoying and I have have tried changing a bunch of settings and it still happens. I have attached comparison pictures to try to show what I mean."

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Thank you for the screenshot.

Off-Color Hue on Mac After Opening:

I see you are using YouTube here. So, what apps does this occur on? Does it occur in the TV app? On streaming sizes (i.e. Zoom or news)? Or QuickTime Player? Or difference Web browsers?

What to Try:

A. Boot in Safe Mode:

While booted in Safe Mode, damages system files are commonly fixed. So, try going intuit, and logging in for 30 seconds and then logging out. Then log in as normal: Start Up your Mac in Safe Mode - Apple Support

B. Single Out Your Display:

Connect to an external monitor, and see if you get this issue. If so, then it is an error within the macOS. If not, then it is a hardware issue. You might need an after such as this, if no HDMI port is on your Mac: Connect to HDMI from your Mac - Apple Support

C. Single-Out your User:

For troubleshooting purposes, create an Administrator user, and then log into it, seeing if you still get this error. If not, then is is an issue with your current user. If so, then it is an issue with your macOS. Trash this user you've just created once this troubleshooting method is complete.