Why does Left Shift + D opens Mission Control after updating to macOS 15.4.1?

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Level 1

4 points

Why does Left Shift + D opens Mission Control after updating to macOS 15.4.1?

After updating to Sequoia 15.4 and even after updating to 15.4.1, when I press left shift + d to make capital D, Mission Control appears. Also when I press and hold left shift + click (trackpad) to highlight text, the cursor move to where the trackpad pointed instead of highlighting it.

Does anyone have the same issue? It is really frustrating. I have literary tried everything. Nothing fix this case permanently.

Please help anyone...

[Re-Titled by Moderator]

Posted on Apr 16, 2025 9:06 PM

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Answer 1

Apr 17, 2025 7:42 AM in response to fransiscus96

To trouble shoot further you can:

—A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.

This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode.

—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

This will tell you if it a universal issue or isolated to your user/admin account.

***wireless keyboard with rechargeable batteries— connect the charging cable, this will make the wired keyboard successful Safe Boot your Mac.

unplug all non-essential peripherals when testing

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

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Answer 2

Tom Gewecke

Level 10

120,520 points

Apr 27, 2025 5:32 AM in response to fransiscus96

fransiscus96 wrote: After updating to Sequoia 15.4 and even after updating to 15.4.1, when I press left shift + d to make capital D, Mission Control appears

Have you checked the system settings for Mission control? See item J here

When Keys Don't Behave Correctly - Apple Community

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Answer 3

fransiscus96 Author

Level 1

4 points

Apr 27, 2025 1:32 AM in response to fransiscus96

I bought a wireless keyboard today, when I press left shift + d to make a capital D, it works fine.

Does it mean that I have hardware problems?

It doesn't make any sense. I mean, left shift plus any other alphabets works fine. right shift+d works fine as well.

if hold left shift+fn and click (instead of left shift+click (on trackpad) I can highlight text. Right shift+ click is working alright...

I really hate to take my mac to service center as I use it on daily bases.

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Why does Left Shift + D opens Mission Control after updating to macOS 15.4.1?