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The menu bar on whatever application is currently active flashes approx. every 10 seconds.

As of this morning (After an update, I believe?), the menu bar on whichever application is currently active flashes about every 10 seconds. Help?

MacBook Pro 15", macOS 10.14

Posted on Jun 24, 2019 1:26 PM

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Question marked as Top-ranking reply

Posted on Jun 24, 2019 2:16 PM

Did you try rebooting ?


Did you try reinstalling the Combo update on top of your current macOS 10.1.4

this has been known to sort anomalies as well

Download macOS Mojave 10.14.5 Combo Update - Apple Support https://support.apple.com/kb/DL2001



To trouble shoot further you can:


Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

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


Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

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


1 reply
Question marked as Top-ranking reply

Jun 24, 2019 2:16 PM in response to TammyCisMe

Did you try rebooting ?


Did you try reinstalling the Combo update on top of your current macOS 10.1.4

this has been known to sort anomalies as well

Download macOS Mojave 10.14.5 Combo Update - Apple Support https://support.apple.com/kb/DL2001



To trouble shoot further you can:


Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc.

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


Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

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


The menu bar on whatever application is currently active flashes approx. every 10 seconds.

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