Reminders App Blank and Non-responsive After Time Machine Migration


I recently migrated a 2021 M1 iMac to a new 2023 M2 Max Mac Studio.


The Reminders app is blank and non-responsive.

  • Does not sync to iCloud
  • Does NOT allow manual entry of new list or reminder
  • Settings: the Default list is blank


NOTE: The app was running perfectly on iMac. All my other devices continue to sync normally and the Reminders in iCloud web interface also works and syncs.


This appears to be a corrupted support file. Any clues about which one?



MacBook Pro (M2 Max, 2023)

Posted on Jun 16, 2023 12:54 AM

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Question marked as Best answer

After spending a half-hour online with a super helpful Senior Support technician at Apple the problem was fixed.

Troubleshooting tasks included creating a test user to verify that sync was working properly, it was, we then reached the solution. I suspected, correctly, that there were some corrupted files in the Library and once those were deleted and the system Re-Started the Reminders app functioned properly.


There are TWO Library folders located at /Users/YOUR USER NAME HERE/Library/Reminders


Move these to the Desktop

Then, restart your Mac

Open the Reminders app and it will rebuild the folders and sync properly.



After you verify that all is good, delete the folder that you placed on the desktop.

Posted on Jun 16, 2023 8:24 AM

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3 replies
Question marked as Best answer

Jun 16, 2023 8:24 AM in response to hdlebowitz

After spending a half-hour online with a super helpful Senior Support technician at Apple the problem was fixed.

Troubleshooting tasks included creating a test user to verify that sync was working properly, it was, we then reached the solution. I suspected, correctly, that there were some corrupted files in the Library and once those were deleted and the system Re-Started the Reminders app functioned properly.


There are TWO Library folders located at /Users/YOUR USER NAME HERE/Library/Reminders


Move these to the Desktop

Then, restart your Mac

Open the Reminders app and it will rebuild the folders and sync properly.



After you verify that all is good, delete the folder that you placed on the desktop.

Reminders App Blank and Non-responsive After Time Machine Migration

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