macOS 27 Mission Control freezes for ~1 second when switching Spaces, animation is missing

Hi everyone,

After updating to macOS 27.0 (Build 26A428), Mission Control/Spaces has become noticeably laggy on my MacBook Pro.

When I swipe up with three fingers to open Mission Control and click another Desktop Space or full-screen application at the top, the screen freezes for approximately 1 second and then immediately switches to the selected Space.

The normal Space transition animation is completely missing/skipped. It feels like macOS freezes for a moment and then simply "teleports" to the next Space.


Steps to reproduce:

1. Swipe up with three fingers to open Mission Control.

2. Click another Desktop Space/full-screen application.

3. Observe the transition.


Expected:

A smooth animated transition between Spaces.

Actual:

~1 second freeze/frame → instant switch → no transition animation.


I'm running:

MacBook Pro M5

macOS 27.0

Build 26A428


I've already restarted the Mac, restarted Dock, and checked Reduce Motion/animation settings. The issue persists.

Is anyone else experiencing this on macOS 27?

Posted on Sep 15, 2026 9:49 AM

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Question marked as Top-ranking reply

Posted on Sep 15, 2026 10:12 AM

The behavior that I observe on macOS 27 is the same as on macOS 26. Three-finger swipe up, click on another Space, and the other Space immediately opens with a 'zoom into then out from top-center' animation.


It may be system specific, I have Golden Gate running on a 16" M4 Pro MBP, and I see the 'normal' behavior as I describe on both the internal display and when running in clamshell mode.


See if the problem is present when you boot in safe mode. That process performs some system cleanup and clears caches, and also disables 3rd party extensions that may cause problems.

 

Start up your Mac in safe mode - Apple Support


If that does not correct the issue, test in a new user account. A newly-created user account will have all settings at default, and if the issue does not occur in that new account then it provides guidance on what may need to be changed to correct the issue.

 

Add a user or group on Mac - Apple Support

 

Once the testing is complete, the new account can easily be deleted.

 

Delete a user or group on Mac – Apple Support


Those steps will help to isolate the problem.

17 replies
Question marked as Top-ranking reply

Sep 15, 2026 10:12 AM in response to gifanaprd

The behavior that I observe on macOS 27 is the same as on macOS 26. Three-finger swipe up, click on another Space, and the other Space immediately opens with a 'zoom into then out from top-center' animation.


It may be system specific, I have Golden Gate running on a 16" M4 Pro MBP, and I see the 'normal' behavior as I describe on both the internal display and when running in clamshell mode.


See if the problem is present when you boot in safe mode. That process performs some system cleanup and clears caches, and also disables 3rd party extensions that may cause problems.

 

Start up your Mac in safe mode - Apple Support


If that does not correct the issue, test in a new user account. A newly-created user account will have all settings at default, and if the issue does not occur in that new account then it provides guidance on what may need to be changed to correct the issue.

 

Add a user or group on Mac - Apple Support

 

Once the testing is complete, the new account can easily be deleted.

 

Delete a user or group on Mac – Apple Support


Those steps will help to isolate the problem.

Sep 17, 2026 1:49 PM in response to TimothyQuinlan

TimothyQuinlan wrote:
Mine does the exact same thing. It seems to be pausing to show desktop widgets (you see them in the top left corner) but as far as I know I have never used a desktop widget. Is there a setting somewhere to get rid of those?

With Sequoia, macOS turned on three Widgets by default. You can hide them in System Settings > Desktop & Dock by unchecking the Show boxes, but the Widgets will still be there.



To actually remove them, first tick the box to show them, then secondary click on each widget and select Remove Widget, or just click anywhere on the Desktop and select Edit Widgets then click the (–) button at the upper left corner of each Widget.


More info: Add and customise widgets on Mac – Apple Support


Sep 15, 2026 8:22 PM in response to neuroanatomist

Thanks for the suggestions. I have already tested Safe Mode and a new user account, but unfortunately the issue persists in both cases.

The Space switching itself works correctly, but there is a noticeable ~1 second freeze/frame drop before the Space opens, and the normal zoom-in/zoom-out transition animation is skipped.

So far, the issue appears to persist regardless of user settings or third-party extensions.

Since you are seeing the normal animation on your 16" M4 Pro, it may be specific to certain Mac models, configurations, or the particular macOS 27 build.

Thanks for confirming that the normal behavior still works on your system.

Sep 16, 2026 9:47 AM in response to aayushman210

Thanks for confirming! I’m seeing the exact same behavior on my MacBook Pro M5 after upgrading to macOS Golden Gate 27.

The Space switching itself works, but there’s a noticeable ~1 second freeze/frame drop before switching, and the normal transition animation is skipped.


I’ve already submitted a report through Apple Feedback Assistant as well. Hopefully this gets enough reports for Apple to investigate it in a future update.

Sep 17, 2026 2:26 PM in response to gifanaprd

same and worse! My macbook pro m4 base model really slowed down after golden gate 27.0 update. The smooth experience I previously had is now gone! I tried to contact apple support, they suggested to wait for few days but now 2 days have been past without any improvement. safari ui is constantly hiding the top side of the page, apps on the doc don't start, app changes are clunky and even going to the desktop is hard from mission control, clicking to an empty area doesn't work anymore...

macOS 27 Mission Control freezes for ~1 second when switching Spaces, animation is missing

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