User level: Level 1 (10 points)MacBook Air M4, macOS 27 Golden Gate
Windows in the background often become auto-resized when I switch back to them, always smaller and centered. I am not using Mission Control, I am not dragging windows, and this is not the black window issue. Apparently for some people this was a problem before 27, but for me it showed up with 27.
Posted on Sep 29, 2026 5:02 PM
User level: Level 10 (211,627 points)Sep 29, 2026 8:46 PM in response to Dan Allison
To the OP and ALL those Affected...
"MacBook Air M4 windows automatically resize to smaller, centered size in macOS 27"
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Report this to Apple Support:
Do your Part: Provide Apple with feedback on this, letting them know about this issue. Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come.
User level: Level 10 (211,627 points)Sep 29, 2026 9:46 PM in response to Dan Allison
"MacBook Air M4 windows automatically resize to smaller, centered size in macOS 27: What? What does my iPhone have to do with my issue? What does the swipe and command-tab have to do with my issue? Did you actually read my post, or are you just replying with standard language?"
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Yes. I read you post.
Not having this issue, nor ever seeing a report of it, I'm trying to picture this issue. And how I can help you best. With no photo, best I can do is guess at how can help. So, provide a photo or full-screenshots, blocking out personal information (i.e. names and photos) by covering it with red-colored rectangles using the Photos app.
"27":
Seeing "27" I'm not certain if you are just using a Mac here, or are along with an iPhone, or anything else. So, try restoring your Mac from a Time Machine Backup that you create before this issue occurred. If you never created one, then take this as a learning experience, knowing to always create a Time Machine Backup prior to making any major changes to it, including updates.
User level: Level 10 (211,627 points)Sep 29, 2026 8:47 PM in response to Dan Allison
Edit...
"MacBook Air M4 windows automatically resize to smaller, centered size in macOS 27: MacBook Air M4, macOS 27 Golden Gate Windows in the background often become auto-resized when I switch back to them, always smaller and centered. I am not using Mission Control, I am not dragging windows, and this is not the black window issue. Apparently for some people this was a problem before 27, but for me it showed up with 27."
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I am not seeing this issue.
What occurs when you perform this....
A. Three-Finger Swipe:
Swipe up the trackpad with three fingers. In do ing so, you will be able to switch to a new Desktop, and access windows on your current desktop.
B. [command + tab]:
Hold Down: command + press tap]. As you go about pressing tab, you will be able to switch to apps.
C. Restore from a Backup:
Did your ever back up your iPhone with these installed? If so, back up you could back up your iPhone, and then restore it from the backup. If not, then take this as a learning experience, knowing to always backup your device prior to making any major change to it (i.e. update installation). That way, you'll have something to restore your iPhone from, should anything go wrong with the update.
User level: Level 1 (10 points)Sep 29, 2026 9:15 PM in response to TheLittles
What? What does my iPhone have to do with my issue? What does the swipe and command-tab have to do with my issue? Did you actually read my post, or are you just replying with standard language?
Originally posted at discussions.apple.com/thread/256367538