iPhone Pro Max 17: Green flashes in video playback

I have the iPhone Pro Max 17 and am updated to the latest iOS 26.2


I am experiencing an issue where when I watch back videos I recorded there will randomly be green flashes, blocks or glitches. Sometimes I can make it happen by double tapping or zooming the video. Sometimes it happens when I stop and start a video. This SEEMS to only affect videos recorded horizontally.


I am mostly recording in 4k 24fps if that makes any difference.


Any ideas? Is this a software or hardware issue? Do I need to exchange my phone or just wait for a software update?


Thanks so much for your help!

iPhone 17 Pro Max, iOS 26

Posted on Dec 30, 2025 4:54 PM

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11 replies

Dec 30, 2025 10:17 PM in response to idlebeach

This doesn’t look like a hardware problem, because the issue appears only in landscape mode and only with certain videos you’ve already recorded. That usually points to a recording or file-corruption issue, not a sensor fault. Check the original source of the videos—especially if they’re synced to iCloud. If they are, make sure your internet connection is stable while streaming them, or download them fully and try again.


The green flashes, blocks, or glitches—especially when zooming, double-tapping, or jumping through the timeline—often happen when the file didn’t encode properly or isn’t loading cleanly from the cloud.


In short, verify whether the video is stored locally or on iCloud, ensure a good connection, and test by recording a short clip offline to see if the problem repeats.

Feb 1, 2026 9:04 AM in response to idlebeach

I too am having the exact same problem. I can 'force' it to happen when playing back a video I filmed, where the video is stored locally on the iPhone, and I turn the iPhones orientation from horizontal to vertical, back and forth, during playback. I assume it's a software glitch, as when I load in the video file into Final Cut Pro X, the video is stable and glitch free. Quite annoying for such an expensive device!

Jan 29, 2026 8:01 AM in response to idlebeach

I too have been having this issue (iPhone 17) but it has not been limited to any video type. It happens in the Youtube app when watching videos as well as in the browser version. I cannot intentionally replicate it (by zooming or otherwise). Very brief green flash that goes across the whole screen. It only happens in landscape mode and takes up about 1/3 of the screen top to bottom and the whole screen left to right (holding horizontally).

Dec 31, 2025 9:57 AM in response to SravanKrA

Thanks so much for the reply!


I’ve verified my files are all stored locally.


I’ve also done some experiments and narrowed it down a little more. It seems to only happen in 4k in landscape mode with the regular video setting.


If I send a video clip to someone else it doesn’t show any issues at all. The green blocky glitches are only an issue in playback on my device.


I really hope I’m not the only one dealing with this weird glitchy problem! I sure would like to fix this soon.

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iPhone Pro Max 17: Green flashes in video playback

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